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1391E5

Expeditionary Fuels Technician

E-5 (Sergeant) · Marines

E1–E3E-4E-5E-6E-7E8–E9
HEADS UP

Sergeant 1391 is the fuel section leader — the NCO who plans fuel support operations, manages the quality control program, writes FitReps on Cpls, and runs the FARP that the aviation commander has to trust. Sergeants Course is the PME gate. The SSgt selection board reads your FitReps and your composite. The environmental compliance program and the fuel accountability are your signature — literally.

The Honest MOS Read
Sergeant in the 1391 community is the fuel section leader — and the section leader is where the fuel mission either works or it does not. You run a fuel section of four to eight Marines responsible for the bulk fuel storage and distribution capability the battalion provides to supported units. The platoon commander sends the fuel support question to you: where do we put it, how do we move it, is it clean, and can we sustain the operation for the duration. The planning dimension expands significantly at Sgt. You plan fuel support operations — FARP layout, bulk fuel point siting, distribution routes, storage capacity, resupply timelines, and the environmental protection plan that keeps the command compliant. You coordinate with the supported units on fuel requirements — how much, what type, where, and when — and you translate those requirements into a supply plan the S-4 can resource. You write the section's T&R training plan, tracking NAVMC 3500 task completion for every Marine in the section. The FitRep writing begins at Sgt. You write evaluations on your Cpls under MCO 1610.7 — observed performance, specific operational outcomes, honest marks. The reporting senior (typically the platoon commander or company commander) builds the attribute rationale from your input. The FitRep you write on a Cpl shapes that Cpl's career — a sloppy or inflated evaluation helps nobody. The environmental compliance program is your signature at this rank. Spill Prevention, Control, and Countermeasure (SPCC) procedures, spill response kits, waste fuel disposal coordination, and the documentation that keeps the command compliant all run through the section leader. The environmental audit that finds gaps in the documentation traces back to the Sgt who signed the SPCC plan. The SSgt selection board reads the full record — FitReps, composite scores, PME completion, awards, education, Pro/Con marks. The differentiator at the Sgt rank is whether the section runs clean under your leadership: clean fuel, balanced accountability, zero uncontained spills, FARP operations that the aviation commander trusts, and Marines who are trained because you trained them. The post-service credential building accelerates at Sgt. HAZMAT certification, CDL with tanker endorsement, environmental compliance certifications, and the college credits through Tuition Assistance all compound. The Sgt who EAS or retires with these credentials walks into the civilian petroleum distribution market at a supervisory level. The Sgt who stays builds toward SSgt — the platoon sergeant rank where the battalion's entire fuel capability runs through your office.
Career Arc
  • 01Cpl to Sgt promotion via composite score / cutting score under MCO 1400.32.
  • 02Fuel section leader assumption — 4-8 Marines, the battalion's fuel support capability.
  • 03Sergeants Course PME completion.
  • 04FARP leadership — planning and supervising FARP operations at the section level.
  • 05FitRep writing on Cpls under MCO 1610.7.
  • 06Career Course PME — preparation for SSgt selection board.
  • 07SSgt centralized selection board — paper-record review.
Common Screwups
  • ×Phoning the section leader role. The fuel section's effectiveness is the Sgt's effectiveness — the platoon commander and the company gunny read it weekly.
  • ×Missing Sergeants Course or Career Course PME. The SSgt board reads the PME record; missed gates are visible.
  • ×NJP / DUI / fraternization — separation under MARCORSEPMAN, clearance issues, SSgt selection foreclosed.
  • ×Letting the environmental compliance documentation drift. An environmental audit finding at the section level is a company-level problem, and the Sgt who signed the SPCC plan answers for it.
  • ×Hiding fuel accountability discrepancies from the platoon sergeant. He finds out from the S-4 audit, and the FitRep conversation happens without you.

A Day in the Life

  • 0500Wake. Check the platoon group chat. PT uniform.
  • 0530PT formation. Take section accountability, report to the platoon sergeant.
  • 0545-0700Unit PT. You lead the section's effort and set the pace.
  • 0700-0830Hygiene, chow, change to utilities. Pre-walk the section's fuel equipment and storage areas.
  • 0830Morning formation. Platoon sergeant briefs the day. You brief your section on priorities.
  • 0900-1130Fuel operations, FARP training, or T&R task training. You are supervising and planning, not doing the work yourself. Walk the fuel point, verify quality testing, inspect fire suppression staging, review accountability logs.
  • 1130-1300Chow. Coordinate with the S-4 on fuel supply status or with the supported unit on fuel requirements.
  • 1300-1500Afternoon work. FitRep drafting for your Cpls. SPCC plan update. T&R completion tracking. Career Course coursework. Counseling sessions with Cpls.
  • 1500-1630Final formation. Fuel accountability reconciliation. Equipment secured. Platoon sergeant debrief.
  • 1700-2000Personal time. Career Course study, MCMAP belt work, Tuition Assistance courses, CDL/HAZMAT certification study.
  • 2000-2200On call for section issues. If a Marine in the section has a problem, the section leader answers the phone.
  • Field / FARPClock breaks. You are running the fuel support element for the exercise. FARP operations on the aviation timeline. Accountability reconciliation when the operation pauses. Sleep when the platoon sergeant rotates you.

Weekly Cadence

Monday is planning: review the week's fuel operations with the platoon sergeant, verify equipment and material posture, brief your Cpls on the week's priorities. Tuesday-Thursday is execution: fuel operations, FARP training, T&R task evaluations, equipment PM. You split time between supervision (walking the fuel point, inspecting quality testing, reviewing accountability) and administration (FitRep drafting, T&R tracking, SPCC updates, Career Course work). Friday is closeout: fuel accountability reconciled, equipment maintenance current, section status briefed to the platoon sergeant. The FARP qualification cycle and the MEU PTP workup compress the rhythm — when the section is in the FARP certification cycle, every day is a rehearsal, and the section's readiness is the platoon commander's BUB slide. The field exercise collapses garrison time entirely — fuel operations run on the supported unit's schedule, and the section leader's job is to keep the fuel flowing, the accountability balanced, and the environmental compliance documentation current while the section operates 16-20 hours a day.

Key Skills — How to Drill Each

  1. 01
    Plan a fuel support operation — FARP layout, bulk fuel point siting, distribution route, storage capacity, resupply timeline, fire safety plan, environmental protection plan — and brief it to the platoon commander as an executable package.
    Start with the supported unit's fuel requirement: consumption rate, fuel type, delivery schedule, duration of operations. Translate the requirement into a fuel support plan: storage capacity needed (how many SIXCON modules or bladders), pump station positioning, distribution route (hose runs or HEMTT tanker routes), FARP site selection (if applicable — proximity to the aircraft, surface condition, drainage, access, fire safety standoff), resupply timeline (when the bulk storage runs empty and when the next supply delivery arrives), fire safety plan (AFFF and extinguisher positioning, CFR staging if FARP), and environmental protection plan (containment berms, spill mats, spill response kit positioning, waste fuel disposal). Brief the plan to the platoon commander as a package he can approve and the S-4 can resource.
  2. 02
    Manage the section's fuel quality control program — test schedules, result documentation, accept/reject decisions, and the corrective actions when a fuel lot fails testing.
    Build the fuel quality testing schedule around the fuel receipt and storage cycle: test every lot at receipt, test stored fuel on the interval the MCO 4410 series specifies, and test before issue if the fuel has been stored longer than the quality control interval. Document every test result with the lot number, date, test type, result, and the accept/reject decision. When a lot fails: quarantine the lot, notify the platoon sergeant and the S-4, document the failure and the disposition (return to supplier, recondition, or dispose). The fuel quality control program that runs to schedule and documents every test result is the program that survives the IG environmental audit.
  3. 03
    Write FitReps on your Cpls under MCO 1610.7 — observed performance, specific operational outcomes, honest marks.
    Keep running notes on each Cpl throughout the rating period: the fuel operations they supervised, the FARP events they ran, the safety record on their fuel points, the T&R tasks they trained on their Marines, the quality testing accuracy. Draft the FitRep narrative from the notes, not from memory. Cite specific operations: 'supervised 14 fuel issue operations and 3 FARP events with zero safety incidents and fuel accountability balanced within 0.5% on every operation.' The reporting senior can defend that narrative. The reporting senior cannot defend 'outstanding NCO who performs all duties exceptionally.' Write 200 specific words.
  4. 04
    Build and execute the section's T&R training plan — FARP operations, bulk fuel handling, fuel quality testing, spill response, fire safety — tracked against NAVMC 3500 task completion.
    Pull the NAVMC 3500 (13xx series) task list for the Cpl and LCpl/PFC levels. Build the training schedule to complete the outstanding tasks within the training quarter. Each T&R task has a performance standard, a condition, and an evaluation method — set up the training event to meet the condition, run the Marine through the task, evaluate against the standard, and sign the completion. Track the section's T&R completion rate and brief the platoon sergeant monthly. The section with 90%+ T&R completion is the section the platoon sergeant sends to the hardest fuel support tasking.
  5. 05
    Coordinate with supported units on fuel requirements — projected consumption rates, type, delivery schedule, priority — and translate those requirements into a supply plan the S-4 can resource.
    The supported unit knows how much fuel they need per day. Your job is to translate that number into a supply plan: how many gallons per day, which fuel type, where and when the delivery happens, and what the resupply timeline looks like when the storage runs low. Coordinate directly with the supported unit's motor transport officer or logistics chief. Get the consumption rate in writing. Build the supply plan, brief the S-4, and track the resupply timeline. The section leader who delivers fuel on time because the supply plan was right is the section leader the S-4 trusts with the next mission.
  6. 06
    Run the section's environmental compliance program — SPCC procedures, spill response kits, waste fuel disposal coordination, and the documentation that keeps the command compliant.
    The SPCC plan for the fuel section documents: fuel storage locations, fuel types and quantities, spill containment measures, spill response procedures, waste fuel disposal procedures, and the reporting chain. Update the SPCC plan when the fuel storage configuration changes. Verify the spill response kits are complete and accessible at every fuel point. Coordinate waste fuel disposal with the base environmental office or the host-nation disposal contractor. Document every spill — no matter how small — with the containment and cleanup actions taken. The SPCC plan that is current and the spill log that is complete survive the IG environmental audit.

Manuals & References — What Chapters Matter

  • MCO 4410 series — Petroleum and Fuels Management
    You are the operational authority on this at the section level. The fuel quality control chapter, the fuel accountability chapter, and the spill prevention chapter are your daily operating framework. Know the fuel quality testing intervals, the accountability reconciliation procedure, and the spill reporting timeline by heart.
  • ATP 4-43 — Petroleum Supply Operations
    The FARP operations and bulk fuel distribution doctrine. At Sgt, you are planning and executing FARP operations at the section level — the FARP chapter is your planning reference. The bulk fuel distribution chapter covers the storage, transfer, and distribution operations you manage daily.
  • NAVMC 3500 (13xx T&R Manual) — Sgt-level individual and collective tasks
    The T&R Manual defines the Sgt-level tasks you must complete and the training plan you must build for the section. Know the collective tasks that apply to the fuel section — FARP operations, bulk fuel point operations, spill response — and build the section's training plan around them.
  • MCO 1610.7 — Performance Evaluation System
    You write FitReps now. Read the current revision thoroughly — the attribute marks rubric, the Section A narrative input format, the relative-value mechanics. The FitRep you write on your Cpl shapes that Marine's career. Write it from documented observations, not from memory.
  • MCO 1400.32 — Marine Corps Promotion Manual
    The composite score and SNCO selection board mechanics. At Sgt, the SSgt selection board runs through the centralized SNCO board, not the cutting-score system. Understand the board mechanics, the FitRep weight, and the PME requirements. Pull the current MARADMIN on SSgt selection rates for the 1391 MOS.
  • MCO P5090.2 — Environmental Compliance and Protection Manual
    You sign the SPCC plan. You manage the spill log. You coordinate waste fuel disposal. This order is the environmental compliance framework the IG audits against. Know the spill reporting timeline and the documentation requirements.

Standards — How to Hit Each

  • Sergeants Course graduate — required and gated on the path to SSgt.
    Pull the in-residence slot at the regional NCO academy when it drops. In-residence is materially more rigorous than CDET. The SSgt selection board reads PME completion; the Sgt who has Sergeants Course complete and Career Course scheduled is the Sgt who is competitive.
  • Section fuel accountability balanced — gallons received minus gallons issued equals gallons on hand, every exercise, every operation.
    Reconcile the fuel accountability at the end of every operation — not at the end of the exercise, not at the end of the month. Establish the opening balance, log every transaction, calculate the closing balance, and verify against the physical inventory. Investigate discrepancies before the platoon sergeant asks. The section with balanced accountability is the section the S-4 trusts.
  • Brown Belt MCMAP minimum; Black Belt is what the company gunny notes on the next FitRep.
    MCMAP belt progression at Sgt signals self-discipline and the commitment to the martial arts program the Corps values. Brown Belt is the minimum; Black Belt is the visible differentiator. Schedule the tape with the senior MCMAP instructor and build the timeline to complete before the SSgt board.
  • 1st-Class PFT and CFT; your section average is reported.
    At Sgt, you are not just hitting 1st-Class for yourself — you are setting the pace for the section. The platoon sergeant reads the section's PFT/CFT average on the unit health-of-the-force report. A section with a Sgt at 1st-Class and a sub-1st-Class average is the section the company gunny asks about.
  • Zero uncontained spills on the section's watch — every spill contained, cleaned, documented, and reported per the environmental compliance program.
    The SPCC plan, the spill response kits, and the trained Marines are the system. Verify the system is in place before every operation. When a spill occurs, execute the containment and cleanup, document the event, and report through the chain. The IG environmental audit checks the spill log against the base environmental office records. Discrepancies are findings.

Technical Mistakes — Concrete Consequences

  • Planning a fuel support operation without verifying the consumption rates with the supported unit.
    Over-staging wastes resources and ties up equipment that could support other missions. Under-staging deadlines the operation when the fuel runs out and the S-4 cannot push a resupply fast enough. The supported unit's motor transport officer knows their consumption rate — get it in writing before you build the supply plan.
  • Letting fuel quality testing lapse because the tempo is heavy.
    One bad fuel lot issued to aviation is a safety-of-flight incident. The investigation starts at the fuel section leader who signed off on the issue without testing. The quality test takes 30 minutes. The safety-of-flight investigation takes months. Test every lot, every time.
  • Not pre-staging spill response equipment before a fuel operation.
    Spills happen. The question is whether the containment and cleanup are immediate or whether the fuel reaches the soil and becomes a remediation problem. The spill kit that is staged within arm's reach contains the spill. The spill kit that is in the connex 200 meters away does not.
  • Doing the work yourself instead of teaching the Cpls to run the fuel point.
    The section fails when you go to Sergeants Course or Career Course because nobody learned the planning and quality control. The Cpls who never planned a FARP or reconciled the fuel accountability have to do it for the first time without supervision. Train the replacement, not the task.
  • Hiding fuel accountability discrepancies from the platoon sergeant.
    The platoon sergeant finds out from the S-4 audit. The conversation about your FitRep happens without you in the room. A discrepancy you identified, investigated, and explained is a learning event. A discrepancy the S-4 found is an integrity event.

Career Decisions at This Rank

  • Reenlistment at Sgt — compete for SSgt or EAS with civilian credentials.
    SRB tier and bonus for 1391 Sgts published in current MARADMIN. The Sgt who reenists builds toward the SSgt platoon sergeant billet — the credential that strengthens both the military career and the post-service market. The Sgt who EAS with HAZMAT certification, CDL tanker endorsement, and environmental compliance experience walks into the civilian petroleum distribution market at a supervisory level. Run the math; both paths are real.
  • B-billet pipeline — DI, recruiter, instructor.
    B-billet at Sgt is the career-broadening assignment the SSgt board reads. DI duty at MCRD is ~3 years and the DI tour identifier is a known check at the SSgt board. Recruiter school opens a recruiting tour. MCES instructor cadre teaches the next generation of fuel technicians. Each B-billet ages you, builds the leadership credential, and is visible on the centralized board. The cost: the technical currency in fuel operations pauses while you serve the B-billet. Talk to Marines who served each tour before volunteering.
  • Career Course timing — in-residence versus CDET.
    Career Course is the PME gate before the SSgt board. In-residence at the regional SNCO academy is materially more rigorous than CDET. Pull the in-residence slot if the family math supports it. The SSgt board reads PME completion; the Sgt who has Career Course completed 12-18 months before the board is the competitive Sgt.
  • Environmental compliance certification — build the civilian credential while active.
    Environmental compliance certifications — RCRA HAZMAT, OSHA HAZWOPER, state environmental compliance officer credentials — transfer directly to the civilian environmental compliance market. The 1391 Sgt manages the section's environmental compliance program daily; the certification formalizes the skill. Ask the training NCO about funding; the certification strengthens both the composite score and the post-service market.

How the Seat Varies by Unit Type

  • ESB fuel section
    Ground fuel support — bulk storage and distribution for vehicles and generators. Larger-volume, steadier tempo. The Sgt manages a bigger fuel inventory and coordinates with more supported units.
  • MWSS fuel section
    Aviation fuel support and FARP operations. Higher risk, higher visibility. The Sgt's FARP planning and execution skills are the primary credential.
  • MEU fuel element
    Expeditionary fuel support during deployment — austere environments, unfamiliar fuel sources, quality testing rigor. The deployment credential compounds the FitRep.
  • III MEF / Okinawa rotation
    Forward-deployed fuel support under III MEF. Pacific theater training, allied interoperability, host-nation fuel sources and environmental regulations.

What Good Looks Like at This Rank

The good Sgt 1391 runs a fuel section that delivers clean fuel on time, keeps the accountability balanced to the gallon, and runs every FARP with the safety discipline that lets the aviation commander request this section for the next exercise. His Cpls are running fuel points because he trained them to — and the fuel points they run are clean because the Sgt taught the standard, not just the procedure. The platoon commander sends the hardest fuel support tasking to his section because the operation runs right the first time. The S-4 trusts his fuel supply plan because the consumption projections match reality and the resupply timeline is honest. The environmental compliance records are current — the SPCC plan is updated, the spill log is complete, and the waste fuel disposal is coordinated. The company gunny has already mentioned his name for the SSgt board. The FitReps on his Cpls are technically precise — the fuel operations named, the safety record documented, the T&R completion rate stated. The Sergeants Course is complete, the Career Course is scheduled, and the MCMAP belt is ahead of the timeline. The civilian credentials — HAZMAT certification, CDL tanker endorsement, Tuition Assistance courses — are building alongside the military career because the Sgt understands that the 1391 field competes directly with civilian petroleum distribution jobs that do not require field exercises.

Preview — The Next Rank

SSgt (E-6) is the platoon sergeant or senior fuels supervisor rank. You run the fuel platoon — ten to twenty Marines through your section leaders. You own the battalion's bulk fuel capability and 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 on bulk fuel receipt. You write FitReps on your Sgts, build the platoon training calendar, and manage the environmental compliance program that keeps the command out of legal trouble. The SSgt selection board runs through the centralized SNCO board under MCO 1400.32 — paper-record review. The differentiator is the FitRep relative-value profile you build at Sgt: section leader who runs clean FARPs, balanced accountability, and Marines who are trained because you trained them.
FAQ

1391 E5 — Frequently Asked Questions

Q01What does a E5 1391 (Expeditionary Fuels Technician) actually do?
You lead a fuel section of four to eight Marines responsible for the bulk fuel storage and distribution capability the battalion provides to supported units.
Q02What's the most important thing to know as a E5 1391?
Sergeant 1391 is the fuel section leader — the NCO who plans fuel support operations, manages the quality control program, writes FitReps on Cpls, and runs the FARP that the aviation commander has to trust.
Q03What does a typical day look like for a E5 1391?
Time-blocked day at the E5 1391 rank tier: 0500 Wake. Check the platoon group chat. PT uniform, 0530 PT formation. Take section accountability, report to the platoon sergeant, 0545-0700 Unit PT. You lead the section's effort and set the pace, 0700-0830 Hygiene, chow, change to utilities. Pre-walk the section's fuel equipment and storage areas, 0830 Morning formation. Platoon sergeant briefs the day. You brief your section on priorities, 0900-1130 Fuel operations, FARP training, or T&R task training. You are supervising and planning, not doing the work yourself. Walk the fuel point,…
Q04What mistakes get E5 1391 soldiers fired or relieved?
Phoning the section leader role. The fuel section's effectiveness is the Sgt's effectiveness — the platoon commander and the company gunny read it weekly; Missing Sergeants Course or Career Course PME. The SSgt board reads the PME record; missed gates are visible; NJP / DUI / fraternization — separation under MARCORSEPMAN, clearance issues, SSgt selection foreclosed
Q05What career decisions matter most at the E5 1391 rank tier?
Reenlistment at Sgt — compete for SSgt or EAS with civilian credentials — SRB tier and bonus for 1391 Sgts published in current MARADMIN. The Sgt who reenists builds toward the SSgt platoon sergeant billet — the credential that strengthens both the military career and the post-service market. The Sgt who EAS with HAZMAT certification, CDL tanker endorsement, and environmental compliance experience walks into the civilian petroleum distribution market at a supervisory level. Run the math; both paths are real; B-billet pipeline — DI, recruiter,…
Q06What's next after E5 for a 1391 (Expeditionary Fuels Technician) in the Marines?
SSgt (E-6) is the platoon sergeant or senior fuels supervisor rank.
Q07What manuals and regulations does a E5 1391 need to know cold?
MCO 4410 series — Petroleum and Fuels Management (you are the operational authority on this at the section level).; ATP 4-43 — Petroleum Supply Operations (FARP and bulk fuel doctrine).; NAVMC 3500 (13xx T&R Manual) — Sgt-level individual and collective tasks.

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