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1391E6

Expeditionary Fuels Technician

E-6 (Staff Sergeant) · Marines

HEADS UP

SSgt 1391 is the platoon sergeant or senior fuels supervisor — the SNCO who owns the battalion's bulk fuel capability, coordinates fuel logistics at the company level, and manages the environmental compliance program that keeps the command out of regulatory trouble. Career Course done. The GySgt selection board is FitRep-driven. DLA Energy, host-nation fuel providers, and the S-4 all route through your desk.

The Honest MOS Read
Staff Sergeant in the 1391 community is the platoon sergeant or senior fuels supervisor — the rank where the battalion's entire fuel support capability runs through one SNCO. You manage ten to twenty Marines through your section leaders. You own the battalion's bulk fuel capability — storage capacity, distribution assets, quality control posture, and FARP readiness. You coordinate with the S-4 on fuel resupply, with the S-3 on fuel support tasking, and with DLA Energy or host-nation fuel providers when the battalion operates in a joint or coalition environment. The planning and coordination dimension at SSgt is materially broader than at Sgt. You plan fuel support for a MAGTF deployment or major exercise — consumption projections across multiple supported units, resupply timelines, storage requirements, FARP positioning, and the environmental protection plan that the base or host-nation requires. The DLA Energy relationship becomes real: you coordinate bulk fuel receipt under contract specifications, manage the quality acceptance testing at receipt, and ensure the accountability transfer keeps the command's fuel inventory clean. The FitRep responsibility expands to three or four Sgt evaluations per cycle. The FitReps you write shape the Sgts' SSgt board competitiveness — and the reporting senior reads your input against the section performance they observed. The SSgt whose FitRep input is specific and defensible builds the reporting senior's trust; the SSgt whose input is generic burns credibility. The environmental compliance program at the platoon level is the most consequential administrative responsibility at SSgt. The SPCC plan covers every fuel storage and handling location in the platoon. The spill response posture must be verified before every operation. The hazardous material storage, the waste fuel disposal coordination, and the documentation must survive an environmental audit — and environmental audits at Marine Corps installations are real, recurring, and consequences-bearing. MCO P5090.2 is the order the IG audits against, and the SSgt who signs the SPCC plan answers for every documentation gap the auditor finds. The safety program at the platoon level — fire prevention, HAZMAT handling, personal protective equipment — is the program that determines whether the fuel platoon operates without incidents or generates the kind of finding that costs careers. The SSgt who builds a safety culture in the platoon builds the culture that survives the SSgt's transfer. The SSgt who tolerates shortcuts builds the culture that generates the fuel fire or the environmental violation that the next SSgt inherits. The GySgt selection board is FitRep-driven. Career Course should be complete; SNCO Academy slot should be identified. The differentiator at the SSgt rank is whether the platoon you built runs clean under your leadership — honest accountability, safe FARP operations, current environmental compliance, and Marines who are trained because you trained their section leaders to train them. The DLA Energy coordination, the host-nation fuel provider relationship, and the S-4 trust are all visible indicators the board reads through the FitRep narrative.
Career Arc
  • 01SSgt pin-on via centralized SNCO selection board under MCO 1400.32.
  • 02Platoon sergeant or senior fuels supervisor assumption — 10-20 Marines.
  • 03Career Course PME completion; SNCO Academy slot identified.
  • 04DLA Energy and host-nation fuel provider coordination.
  • 05FitRep writing on three to four Sgts per cycle.
  • 06Environmental compliance program ownership at the platoon level.
  • 07GySgt centralized selection board — FitRep-driven.
Common Screwups
  • ×Reporting fuel accountability numbers that do not match what is actually in the bladders and tanks. The S-4 audits. The SSgt whose numbers do not match reality loses credibility for the rest of the tour.
  • ×Allowing FARP operations to proceed without a full safety brief and CFR posture in place. One fuel fire on a flight line is a career-ending investigation.
  • ×Writing inflated FitReps on Sgts who are not performing. The reporting senior remembers, and the board reads the inflation.
  • ×Not tracking environmental compliance documentation. The IG environmental finding lands on the company commander, and the SSgt who signed the SPCC plan is the first person asked.
  • ×Deferring equipment maintenance because the operational tempo is heavy. The pump that fails during a FARP is your schedule to own.

A Day in the Life

  • 0500Wake. Phone check — equipment breakdown overnight, spill report, Marine in trouble, S-4 tasking change. The platoon sergeant's day starts with whatever happened while he was asleep.
  • 0530PT formation. Report platoon accountability to the company gunny and the 1stSgt. The platoon sergeant who is missing a Marine at PT and does not know why is the platoon sergeant the company gunny talks to before the run starts.
  • 0545-0700Unit PT. Lead the platoon or run the platoon PT plan — alternating between company-level PT (runs, humps, MCMAP mat work) and platoon-led PT (section competitions, FARP equipment carry drills, functional fitness circuits that build the strength for fuel handling). The SSgt who leads from the front at PT earns the credibility that makes the safety enforcement effective.
  • 0700-0830Hygiene, chow, change to utilities. Walk the fuel storage areas and the equipment lot before morning formation. Check the SIXCON modules, bladders, pumps, and test kits. Verify the spill response kits are staged and the containment berms are intact. The walk-through before formation catches the problem the morning formation would otherwise discover.
  • 0830Morning formation. Company commander or 1stSgt briefs the company. You brief your platoon — the day's fuel operations, the maintenance schedule, the T&R training events. Your section leaders translate your brief to their Marines.
  • 0900-1130Platoon operations. If fuel operations are running: walk the fuel points, verify safety posture, inspect quality testing, review accountability logs. If training: observe section leaders running T&R task evaluations, FARP drills, or equipment PM. If planning: coordinate with the S-4 on fuel supply status, with DLA Energy on upcoming bulk fuel deliveries, or with the supported units on fuel requirements for the next exercise. The SSgt splits time between supervision and coordination — the balance shifts with the operational tempo.
  • 1130-1300Chow. Coordinate with the S-4, the motor pool chief, or the supported unit POCs over lunch. The informal coordination at chow is where the fuel supply plan gets adjusted before the formal meeting.
  • 1300-1500Afternoon work. FitRep drafting for your three to four Sgts if in the evaluation window. Environmental compliance documentation — SPCC plan update, spill log review, waste fuel disposal coordination. T&R completion tracking for the platoon. Mentorship sessions with Sgts — composite score review, Career Course timing, B-billet discussion. If a Marine-in-crisis situation: the platoon sergeant handles it before it reaches the company gunny.
  • 1500-1630Final formation. Fuel accountability reconciliation for the day's operations. Equipment secured, fuel points closed out. The section leaders brief their Marines on the next day's priorities. You brief the company gunny on the platoon's status.
  • 1630-1700Close-out with the company gunny. Review the next day's plan, address any equipment or personnel issues, coordinate for the next week's training events.
  • 1700-2000Personal time. SNCO Academy coursework if scheduled. HAZMAT/CDL certification study. Family time. The SSgt's work-life balance is better than the Sgt's in garrison but compresses heavily during MEU PTP and deployment.
  • 2000-2200On call for platoon issues. Equipment emergency, Marine in trouble, after-hours spill report. The platoon sergeant who answers the phone and handles the problem before the company gunny hears about it is the platoon sergeant the company gunny trusts.
  • Field / deploymentClock breaks. Fuel support runs on the MAGTF timeline. DLA Energy coordination happens at 0200 if that is when the delivery arrives. FARP operations run on the aviation schedule. Accountability reconciliation happens daily, not weekly. The SSgt who keeps the platoon running at sustained tempo without a safety incident or an accountability gap is the SSgt the company commander defends at the GySgt board.

Weekly Cadence

Monday is the heaviest planning day at the SSgt level. Review the week's fuel operations with the company gunny and the S-4. Verify equipment and material posture — which pumps are operational, which SIXCON modules are loaded, which test kits are calibrated. Brief your section leaders on the week's priorities. If a fuel receipt from DLA Energy is scheduled, Monday is the coordination day: verify the delivery timeline, confirm the quality acceptance testing plan, and stage the receiving team. Tuesday through Thursday is execution and supervision. The section leaders run the fuel operations, the T&R training, and the equipment maintenance. You supervise: walk the fuel points, inspect the safety posture, verify the quality testing, review the accountability logs. Split the remaining time between coordination (S-4 on resupply, supported units on fuel requirements, DLA Energy on delivery status) and administration (FitRep drafting, T&R completion tracking, environmental compliance documentation, SPCC plan updates). Thursday is typically the maintenance day — the day the platoon's equipment gets the PM that keeps it operational for the next week's operations. Friday is the close-out day. Fuel accountability reconciled across every fuel point — the platoon's opening balance plus receipts minus issues equals the closing balance, verified against the physical inventory. Equipment maintenance records updated. Environmental compliance documentation current. Platoon status briefed to the company gunny. The good SSgt closes Friday with the accountability balanced, the equipment maintained, the compliance documentation current, and the next week's fuel operations already coordinated — because Monday starts with the S-4's question, and the SSgt who has the answer ready starts the week from a position of trust, not scrambling.

Key Skills — How to Drill Each

  1. 01
    Own the battalion's bulk fuel support capability — storage capacity, distribution assets, quality control posture, FARP readiness — and brief the S-4 and company commander weekly.
    Build a fuel support status report that covers: gallons on hand by fuel type and storage location, equipment readiness (pumps by serial number, SIXCON modules by condition code, bladders by capacity and age, HEMTT tankers by deadline status, EMFAC operational status, test kits by calibration date), FARP team qualification status (which teams are current, which need requalification), environmental compliance posture (SPCC plan currency, last spill log entry, waste fuel disposal status), and the next 30-day fuel demand forecast (which supported units have submitted requirements, what the consumption projection says, where the resupply gap will appear). Brief the S-4 and company commander weekly. The SSgt whose status report is current and honest is the SSgt the S-4 trusts with the deployment fuel plan. The SSgt whose report is a week old or optimistic is the SSgt the S-4 double-checks — and double-checking is the first step toward losing the coordination authority.
  2. 02
    Write three to four Sgt FitReps per cycle that the reporting senior can defend at the battalion review.
    Keep running notes on each Sgt throughout the rating period: the fuel operations their section supported (count them), the FARP events they led (name them), the safety record on their fuel points (any incidents? how many clean operations?), the environmental compliance posture their section maintained, the T&R completion rate their Marines achieved, and the Cpls they developed. Draft the narrative from the notes 30 days before the report is due. Cite specific operations and measurable outcomes. The reporting senior can defend 'supervised 22 FARP operations and 47 fuel issue events with zero safety incidents and fuel accountability balanced within 0.3% across every operation.' The reporting senior cannot defend 'outstanding section leader who excels in all areas of fuel operations.' Write 200 specific words rather than 400 generic ones.
  3. 03
    Plan and coordinate fuel support for a MAGTF deployment or major exercise — consumption projections, resupply timelines, storage requirements, FARP positioning, environmental protection plan.
    Start 120 days before the deployment or exercise. Collect fuel consumption data from every supported unit — vehicle count by type, generator count by rating, aviation asset fuel burn rate per hour, and the duration of operations. Build the demand forecast: total gallons per day by fuel type, peak consumption windows (movement phases, FARP operations, generator-heavy base-camp operations), and the cumulative demand over the operation duration. Calculate the storage requirement: how many SIXCON modules, bladders, or tankers you need on site to bridge the gap between resupply deliveries. Coordinate with the S-4 on the resupply timeline: when does DLA Energy deliver, how long does the delivery take, what is the contingency if the delivery is delayed by 48 hours? Coordinate with the host-nation environmental authority if deploying overseas: what environmental protection requirements apply, what containment measures are required, what reporting obligations exist? Brief the company commander as a package he can approve and the battalion S-3 can schedule against the training calendar.
  4. 04
    Run the platoon's environmental compliance program — SPCC plan, spill response readiness, waste fuel disposal, hazardous material storage, and the documentation that survives an environmental audit.
    The SPCC plan for the platoon documents every fuel storage location, every fuel type and quantity, every containment measure, every spill response procedure, every waste fuel disposal arrangement, and the reporting chain. Update the SPCC plan whenever the fuel storage configuration changes — new fuel point, new bladder location, new storage capacity. Verify spill response kits at every fuel point monthly: absorbent pads, booms, disposal bags, PPE, and the spill report forms must be present and accessible. Coordinate waste fuel disposal with the base environmental office or the host-nation disposal contractor: waste fuel accumulates during filter changes, quality test failures, and equipment maintenance, and it must be disposed of within the regulatory timeline. Maintain the hazardous material storage records for every HAZMAT item the platoon handles: fuel additives, test reagents, cleaning solvents, AFFF concentrate. The IG environmental auditor checks the SPCC plan, the spill log, the waste disposal manifests, and the HAZMAT storage records. Documentation gaps are findings. Findings become corrective actions. Corrective actions that are not completed become command-level problems.
  5. 05
    Manage the platoon's equipment readiness — SIXCON modules, pump stations, HEMTT tankers, fuel bladders, EMFAC, test kits — to the maintenance schedule and the operational requirement.
    Track equipment readiness on the same status report you brief the S-4 weekly. Every piece of fuel handling equipment has a PM schedule in the applicable technical manual. Build the platoon maintenance schedule 90 days out: which equipment gets PM this week, which section leader is responsible, what parts are needed, and what the deadline date is if the PM is missed. The pump that fails during a FARP operation because nobody followed the PM schedule is the pump that deadlines the operation and generates the equipment readiness investigation that names the SSgt who signed the maintenance schedule. Hold the section leaders accountable for PM completion — verify completion, inspect the equipment after PM, and document the maintenance action. Equipment readiness is not a goal to approximate; it is a standard to meet.
  6. 06
    Coordinate with DLA Energy or host-nation fuel providers for bulk fuel receipt — contract requirements, fuel specifications, quality acceptance testing at receipt, and the accountability transfer.
    DLA Energy contracts specify the fuel type (JP-8, diesel, MOGAS), the military specification the fuel must meet, the delivery schedule, the quantity per delivery, and the quality acceptance procedure the receiving unit must follow. Read the contract before the first delivery — the SSgt who does not know the contract specifications cannot verify them at receipt. At receipt: verify the fuel type and specification on the delivery documentation match the contract. Run the quality acceptance test — water content, particulate, additive levels — per the acceptance testing procedure in the MCO 4410 series. Do not accept fuel that fails testing, regardless of the delivery schedule or the operational pressure. Document the acceptance test results and the accountability transfer: the gallons received, the lot number assigned, and the date and time. The host-nation fuel provider relationship adds complexity: different fuel specifications (NATO F-34 vs JP-8, different diesel grades), different documentation requirements, different environmental regulations. Build the relationship before the deployment, verify the specifications in advance, and run the same quality acceptance testing rigor regardless of the source.

Manuals & References — What Chapters Matter

  • MCO 4410 series — Petroleum and Fuels Management
    You are the senior enlisted authority on this at the company level. The fuel quality control program, the fuel accountability system, the spill prevention framework, and the bulk fuel receipt procedures all run through the platoon sergeant. The SSgt who knows this order at the chapter level is the SSgt the S-4 trusts with the deployment fuel plan. Re-read the fuel quality control chapter and the fuel accountability chapter at every change of duty station.
  • ATP 4-43 — Petroleum Supply Operations
    The FARP and bulk fuel doctrine used in joint fuel operations. At SSgt, you are planning fuel support at the platoon and company level — the FARP operations chapter is your planning reference for any FARP that supports joint or Navy aviation assets. The bulk fuel distribution chapter covers the storage, transfer, and distribution operations you manage daily. The class III supply point operations chapter covers the garrison fuel point operations that make up 80% of your peacetime work.
  • NAVMC 3500 (13xx T&R Manual) — platoon-level collective standards
    The T&R collective tasks at the platoon level are the tasks the battalion evaluates against during MCCRE and pre-deployment evaluations. Build the platoon training plan around the collective tasks: FARP operations, bulk fuel point operations, spill response, and fuel quality control. Track collective task completion the way the battalion S-3 tracks it — because the S-3 will ask.
  • MCO 1610.7 — Performance Evaluation System
    You write three to four Sgt FitReps per cycle and receive FitReps from the company commander or the battalion engineer officer. The FitRep system at SSgt is the system the GySgt selection board reads. Know the attribute marks rubric, the relative-value mechanics, and the narrative input format. A FitRep you write that does not match the format the reporting senior expects generates a revision request that delays the evaluation and damages your credibility.
  • MCO 1400.32 — Marine Corps Promotion Manual
    SSgt-to-GySgt board mechanics. The centralized SNCO board reads the full record — FitReps, PME, B-billet, awards, education, Pro/Con marks. Understand the board mechanics so you can build the competitive package deliberately, not accidentally. Pull the current MARADMIN on GySgt selection rates for the 13xx community.
  • MCO P5090.2 — Environmental Compliance and Protection Manual
    You sign the platoon SPCC plan. You own the spill log. You coordinate waste fuel disposal. You maintain the HAZMAT storage records. This order is the environmental compliance framework the IG audits against. The SSgt who knows the spill reporting timeline (immediate verbal notification, written report within 24 hours for reportable quantities) and the documentation requirements avoids the finding that the SSgt who does not know them generates.

Standards — How to Hit Each

  • Career Course completed; SNCO Academy slot identified for the GySgt board.
    Career Course is the PME gate at SSgt. Complete it early in the SSgt tour — within the first 12-18 months if the slot is available. In-residence at the regional SNCO academy is the preferred option; CDET non-resident works around deployment schedules but is less visible on the board read. SNCO Academy Advanced Course is the next PME gate for the GySgt board — identify the slot with the company gunny and build the timeline 24 months before the board. The GySgt board reads PME completion as a leadership-commitment signal; the SSgt who has Career Course complete and Advanced Course slated is the SSgt who is competitive.
  • Platoon fuel accountability balanced across every operation — no unexplained gains or losses in the fuel inventory.
    Reconcile the platoon's fuel inventory after every operation — not at the end of the exercise, not at the end of the month. Establish the opening balance by fuel type and storage location. Log every transaction through the section leaders. Calculate the closing balance and verify against the physical inventory (dip-stick measurements, flow meter readings, SIXCON level indicators). Investigate discrepancies before the S-4 audit finds them. A discrepancy you identified, investigated, and explained is a training opportunity. A discrepancy the S-4 found is an IG finding. The SSgt whose accountability is honest and balanced is the SSgt the S-4 certifies for deployment.
  • Black Belt MCMAP at the SSgt level.
    Black Belt at SSgt signals discipline, commitment to the martial arts program, and the personal standard the platoon reads. The company gunny notes the MCMAP belt on the FitRep. The GySgt board reads it as part of the professional development profile. Schedule the Black Belt tape with the senior MCMAP instructor; build the timeline to complete within the first 18 months of the SSgt tour.
  • Platoon PFT/CFT pass rate at or above 95%.
    The company's PFT/CFT pass rate is on the BUB slide the BSgtMaj reads. A platoon below 95% generates a conversation between the company gunny and the BSgtMaj that includes the platoon sergeant's name. Build the company PT program around the bottom quartile — the Marines who are at risk of failing the PFT/CFT. Structure the platoon PT cycle to compound section-level work. Own the BCP cases. Lead the formation from the front — the platoon whose SSgt runs a 285+ PFT is the platoon whose Marines run harder.
  • FitRep relative value above battalion average — the SSgt-to-GySgt board is FitRep-driven.
    The relative-value profile you build as a reporting senior and receive as a rated Marine compounds across reporting periods. Build the RV through honest performance: clean FARPs (zero safety incidents), balanced accountability (verified by S-4 audit), current environmental compliance (verified by IG inspection), and Marines who are trained and promoted because you trained their section leaders. The FitRep narrative that cites specific operations, measurable outcomes, and observable leadership impact builds the RV that the GySgt board reads.

Technical Mistakes — Concrete Consequences

  • Reporting a fuel accountability number that does not match reality.
    The S-4 will audit. The SSgt whose numbers do not match the bladders loses credibility with the company commander and the S-4 for the rest of the tour. Credibility in fuel accountability is binary — you either have it or you do not.
  • Allowing FARP operations to proceed without full safety posture.
    One fuel fire on a flight line is a mass casualty event and a career-ending investigation for the fuels supervisor who signed the safety plan.
  • Writing inflated FitReps on Sgts.
    The reporting senior remembers the inflation. The board reads the RV profile. An SSgt who inflates burns credibility for every subsequent reporting period.
  • Not tracking environmental compliance documentation.
    The IG environmental finding lands on the company commander. The SSgt who signed the SPCC plan is the first person the IG interviews. Documentation gaps become formal findings.
  • Deferring equipment PM because of tempo.
    The pump that fails during a FARP because nobody followed the PM schedule is the pump that deadlines the operation and generates the equipment readiness investigation. PM is not optional.

Career Decisions at This Rank

  • 1stSgt vs MSgt fork — troop leader vs occupational expert.
    At the GySgt board, the 1stSgt vs MSgt fork becomes the explicit career conversation. 1stSgt is the company senior enlisted leader. MSgt is the staff senior NCO — operations chief or S-4 fuels chief. Both pin at E-8. Honest self-assessment: are you a troop leader or a systems expert? The fuel community needs both.
  • B-billet completion if not done — DI, recruiter, instructor.
    If you reached SSgt without a B-billet, the GySgt board reads the gap. The SSgt window is the last comfortable opportunity for DI duty, recruiter tour, or MCES instructor cadre. The B-billet credential fills the gap on the board read.
  • HAZMAT certifications and CDL tanker endorsement — the civilian credential pipeline.
    The SSgt who has HAZMAT Manager certification, CDL with tanker endorsement, and OSHA HAZWOPER walks into the civilian petroleum distribution or environmental compliance market at the supervisory level. Build the credentials during active duty through the unit training budget and SkillBridge.
  • Retirement timeline planning — 20-year mark approaching.
    At SSgt with 14-18 years TIS, the 20-year retirement is 2-6 years away. BRS multiplier is 2.0% per year. The Sgt who stays for GySgt/MSgt/1stSgt compounds the military retirement and the post-service value. The SSgt who retires at 20 with civilian certifications enters the market immediately. Run the math with a financial counselor.

How the Seat Varies by Unit Type

  • ESB fuel platoon
    Ground fuel support at the platoon level. The SSgt manages a larger fuel inventory — multiple SIXCON arrays, multiple bladder systems, HEMTT tankers — supporting vehicles, generators, and engineer equipment across the battalion's operational area. The DLA Energy coordination is more complex because the volume is larger and the delivery schedule is tighter. The environmental compliance burden is heavier because the fuel storage footprint is bigger. The trade-off: the FARP mission is secondary, the pace is steadier, and the SSgt has more time for planning and coordination than the SSgt at an MWSS.
  • MWSS fuel platoon
    Aviation fuel support and FARP at the platoon level. The SSgt's primary metric is FARP readiness — the aviation commander trusts the FARP because the platoon sergeant's teams are qualified, the safety posture is verified, and the quality testing is rigorous. The FARP tempo is higher, the safety stakes are absolute (safety-of-flight standard), and the coordination with the MAG and the aviation maintenance community is closer. The trade-off: less bulk fuel volume, more FARP intensity, and the relationship with the aviation community is the relationship the company commander's BUB slide is built on.
  • MLG fuel element
    Sustainment fuel support for the logistics chain. The SSgt coordinates fuel support with the supply, maintenance, and transportation elements — the fuel is one link in the sustainment chain. The planning is broader (fuel for the maintenance facility, fuel for the motor pool, fuel for the supply point generators) and the coordination is more inter-functional. The FARP mission is rare; the bulk fuel management and the DLA Energy coordination are the primary skills.
  • Deployment / MEU fuel element
    Expeditionary fuel support during deployment. The SSgt coordinates with DLA Energy on deployment-theater fuel contracts, manages quality acceptance testing on fuel from unfamiliar sources (host-nation fuel that may not meet JP-8 specification without conditioning), and enforces environmental compliance under host-nation environmental regulations that may differ from CONUS. The deployment credential is visible on the FitRep and compounds the GySgt board read.

What Good Looks Like at This Rank

The good SSgt 1391 runs a platoon where the fuel accountability is honest — not optimistic, not rounded, honest. The gallons on hand match the gallons the dip stick says are in the bladder. The FARP runs clean from setup to teardown: grounded, tested, documented, and zero uncontained spills. The environmental compliance records are current — the SPCC plan matches the actual fuel storage configuration, the spill log is complete, the waste fuel is disposed of on schedule, and the HAZMAT storage records are in order. His Sgts are SSgt-board-ready because the SSgt built them through deliberate mentorship — quarterly composite score reviews, Career Course timing conversations, FitRep input that cites specific operations and measurable outcomes. The S-4 trusts his fuel numbers because the numbers have been right every time — not close, right — and the S-4 certifies his platoon for deployment because the last three fuel accountability audits came back clean. The company commander is willing to lose him to a B-billet or to the GySgt slate because the platoon he built will sustain the operation without him. The section leaders enforce the safety standard because the SSgt taught them why the standard exists, not just what the standard says. When the deployment fuel plan needs to work on the first try, the company commander sends it to this platoon because the SSgt who runs it has never delivered a fuel plan that failed — and the environmental compliance documentation has never generated an IG finding.

Preview — The Next Rank

GySgt (E-7) is the company gunny or senior fuels chief — the rank where the battalion's fuel capability runs through your office. You advise the company commander and the S-4 on fuel logistics planning, write three to five SSgt FitReps per cycle, set the quality, safety, and environmental standards the entire fuel operation runs under, and run the company through pre-deployment fuel operations validation. The 1stSgt and the BSgtMaj are watching. The promotion to GySgt runs through the centralized SNCO selection board under MCO 1400.32 — paper-record review. The board reads the full record: FitReps with relative-value placement, PME completion (Career Course required, Advanced Course preferred), awards, education, B-billet history, and the visible fuel operations performance during the workup and the deployment. The MSgt-vs-1stSgt conversation is on the table at GySgt. The 1stSgt is the company senior enlisted leader — formation, discipline, climate, family readiness. The MSgt is the staff senior NCO — operations chief at the battalion S-4 or the regiment, the technical authority on fuel logistics. Both pin at E-8. The BSgtMaj's read of your career arc shapes which slate you are on. The GySgt who built a company that runs clean fuel operations to standard — and who built the SSgts who will sustain that standard — is the GySgt the BSgtMaj names.
FAQ

1391 E6 — Frequently Asked Questions

Q01What does a E6 1391 (Expeditionary Fuels Technician) actually do?
You run the fuel platoon or the senior fuels section in the engineer support battalion or the wing support squadron.
Q02What's the most important thing to know as a E6 1391?
SSgt 1391 is the platoon sergeant or senior fuels supervisor — the SNCO who owns the battalion's bulk fuel capability, coordinates fuel logistics at the company level, and manages the environmental compliance program that keeps the command out of regulatory trouble.
Q03What does a typical day look like for a E6 1391?
Time-blocked day at the E6 1391 rank tier: 0500 Wake. Phone check — equipment breakdown overnight, spill report, Marine in trouble, S-4 tasking change. The platoon sergeant's day starts with whatever happened while he was asleep, 0530 PT formation. Report platoon accountability to the company gunny and the 1stSgt. The platoon sergeant who is missing a Marine at PT and does not know why is the platoon sergeant the company gunny talks to before the run starts, 0545-0700 Unit PT. Lead the platoon or run the platoon PT plan — alternating between company-level PT (runs, humps,…
Q04What mistakes get E6 1391 soldiers fired or relieved?
Reporting fuel accountability numbers that do not match what is actually in the bladders and tanks. The S-4 audits. The SSgt whose numbers do not match reality loses credibility for the rest of the tour; Allowing FARP operations to proceed without a full safety brief and CFR posture in place. One fuel fire on a flight line is a career-ending investigation; Writing inflated FitReps on Sgts who are not performing. The reporting senior remembers, and the board reads the inflation
Q05What career decisions matter most at the E6 1391 rank tier?
1stSgt vs MSgt fork — troop leader vs occupational expert — At the GySgt board, the 1stSgt vs MSgt fork becomes the explicit career conversation. 1stSgt is the company senior enlisted leader. MSgt is the staff senior NCO — operations chief or S-4 fuels chief. Both pin at E-8. Honest self-assessment: are you a troop leader or a systems expert? The fuel community needs both; B-billet completion if not done — DI, recruiter, instructor — If you reached SSgt without a B-billet, the GySgt board reads the gap. The SSgt window is the last comfortable opportunity for DI duty, recruiter tour,…
Q06What's next after E6 for a 1391 (Expeditionary Fuels Technician) in the Marines?
GySgt (E-7) is the company gunny or senior fuels chief — the rank where the battalion's fuel capability runs through your office.
Q07What manuals and regulations does a E6 1391 need to know cold?
MCO 4410 series — Petroleum and Fuels Management (you are the senior enlisted authority on this at the company level).; ATP 4-43 — Petroleum Supply Operations.; NAVMC 3500 (13xx T&R Manual) — platoon-level collective standards.

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Published by the Honest MOS Editorial DeskVerified against DoD/.gov sourcesUpdated May 2026Editorial standards