- What You Are Up Against: The Exam in Numbers
- Eligibility, Registration, and Fee Mechanics
- How the 85 Questions Are Distributed
- Drilling: What to Master
- Production/Completion: Your Biggest Range
- Facilities: Small Range, Big Payoff
- Reservoirs: Calculation-Heavy Territory
- Economics and Management
- Working With the Reference Handbook
- A Domain-Ordered Study Schedule
- Exam Day Logistics and Pacing
- Frequently Asked Questions
- PE Petroleum has 85 questions across five domains, with 8 hours 30 minutes of testing inside a 9-hour-30-minute appointment.
- Production/Completion has the largest published range, 18-27 questions, so it deserves the most study hours.
- The exam is closed book except the electronic NCEES PE Petroleum Reference Handbook; personal references are prohibited.
- NCEES charges USD 400 per attempt; your licensing board's application fees are separate.
What You Are Up Against: The Exam in Numbers
The Principles and Practice of Engineering - Petroleum exam, administered by the National Council of Examiners for Engineering and Surveying (NCEES), is a computer-based test delivered at Pearson VUE test centers. It is the licensing-track exam for petroleum engineers who have already passed the Fundamentals of Engineering exam and accumulated qualifying work experience. If you are still sorting out terminology, our explainers on what PE-P is and what PE-P stands for cover the basics; this guide assumes you have decided to sit for it and want to pass on the first attempt.
Here are the structural facts that should shape every study decision:
| Feature | PE Petroleum Detail |
|---|---|
| Total questions | 85 |
| Actual testing time | 8 hours 30 minutes |
| Full appointment length | 9 hours 30 minutes (includes a 2-minute nondisclosure agreement, 8-minute tutorial, and 50-minute scheduled break) |
| Question types | Multiple-choice plus alternative item types |
| Partial credit | None on alternative item types |
| Penalty for wrong answers | None |
| Units | SI and U.S. Customary System (USCS) |
| Reference material | Electronic NCEES PE Petroleum Reference Handbook only |
| Fee | USD 400 per attempt (NCEES) |
| Next annual administration | October 27, 2026 |
Two details matter immediately. First, there is no penalty for guessing, so you should never leave an item blank. Second, alternative item types award no partial credit, which means a multi-part response is all-or-nothing. Practicing these formats before test day is not optional.
Eligibility, Registration, and Fee Mechanics
NCEES describes the intended candidate as an engineer with at least four years of post-college work experience. That is a description of the target examinee, not a universal admission rule. Your state or territory licensing board controls whether you are approved to sit, and boards differ on education, experience, and timing. Read the specifics in our PE-P requirements guide and then confirm directly with your board before paying anything.
On cost, there are two separate buckets. NCEES charges USD 400 for each exam attempt. Your licensing board may charge its own application, evaluation, or licensure fees on top of that. Budget for both, and see the PE-P certification cost breakdown for a full accounting of what to expect.
Because the exam is offered on an annual cycle, scheduling matters. The next administration is October 27, 2026. Check the PE-P exam dates guide and the NCEES exam page for current deadlines, and remember that your board's approval timeline can be the real bottleneck.
How the 85 Questions Are Distributed
NCEES publishes question ranges for each of the five exam-objective headings in the exam specifications effective October 1, 2023. These are ranges, not fixed allocations or percentage weights, so the exact count of questions in each domain can vary from one exam form to another.
| Domain | Published Question Range |
|---|---|
| Drilling | 17-26 |
| Production/Completion | 18-27 |
| Facilities | 9-14 |
| Reservoirs | 17-26 |
| Economics and Management | 9-14 |
Three domains (Drilling, Production/Completion, and Reservoirs) carry wide, high ranges, while Facilities and Economics and Management are narrower. Production/Completion has the largest published range at 18-27 questions. For a deeper breakdown of each area, read the complete guide to all five PE-P content areas.
Drilling: What to Master
Domain 1: Drilling (17-26 questions)
Drilling questions reward candidates who can move quickly between hydraulics, mechanics, and well-planning logic. Expect calculation-based items that hinge on correct unit handling.
- Drilling fluid properties and the pressure relationships among hydrostatic pressure, pore pressure, and fracture gradient
- Casing and wellbore design logic, including how pressure and load considerations constrain casing selection
- Well control principles and kill-sheet style calculations
- Hydraulics: pump pressure, annular pressure losses, and bit hydraulics
- Directional drilling geometry and trajectory calculations
- Cementing fundamentals and well integrity concepts
The common trap in Drilling is unit conversion. Oilfield practice mixes units freely, and the exam supports both SI and USCS. Build the habit of writing units on every line of your scratch work so a mud-weight or pressure-gradient conversion error does not cost you a question you otherwise understood.
Production/Completion: Your Biggest Range
Domain 2: Production/Completion (18-27 questions)
This is the largest published range on the exam, which makes it the highest-leverage place to invest study hours. It spans how a well is completed, stimulated, and lifted over its life.
- Inflow performance relationships and nodal analysis concepts, linking reservoir deliverability to wellbore and surface constraints
- Completion design, including perforating and sand-control considerations
- Artificial lift selection and sizing logic across the common methods
- Well stimulation: hydraulic fracturing and acidizing fundamentals
- Production troubleshooting and well performance diagnosis
- Flow behavior in tubing and the effect of multiphase flow
Because this domain overlaps conceptually with Reservoirs and Facilities, studying it well pays secondary dividends. A nodal analysis problem, for example, forces you to think about reservoir inflow and surface backpressure together, which reinforces material you will see in two other domains.
Key Takeaway
Allocate your largest block of study time to Production/Completion, then use its overlap with Reservoirs and Facilities as a built-in review mechanism. Reinforcing inflow and outflow relationships helps in three places at once.
Facilities: Small Range, Big Payoff
Domain 3: Facilities (9-14 questions)
Facilities has one of the two narrowest ranges, which tempts candidates to skip it. Resist that. These questions are often more conceptual and procedural than the calculation-heavy domains, which makes them efficient points for prepared candidates.
- Separation and treating of produced fluids
- Gas processing and handling fundamentals
- Piping, pumps, and compressors in a production-facility context
- Gathering and transport considerations
- Safety, environmental, and process-equipment principles relevant to surface operations
If your day job is subsurface-focused, Facilities may feel unfamiliar. Candidates with drilling or reservoir backgrounds often benefit from a short, structured pass through surface-equipment basics early in their preparation, rather than leaving it for the final weeks.
Reservoirs: Calculation-Heavy Territory
Domain 4: Reservoirs (17-26 questions)
Reservoirs is the second domain, alongside Drilling, with a wide, high range. Expect problems that demand clean setups and careful algebra.
- Rock and fluid properties, including porosity, permeability, saturation, and PVT behavior
- Volumetric estimation of hydrocarbons in place
- Material balance for different reservoir drive mechanisms
- Well testing and pressure transient analysis concepts
- Decline curve analysis and production forecasting
- Fluid flow in porous media and displacement concepts
The best preparation here is repetition on worked problems. Practice setting up each equation from the handbook's formulation rather than from memory, since the exam environment gives you the handbook but nothing else.
Economics and Management
Domain 5: Economics and Management (9-14 questions)
Like Facilities, this domain has a narrow range but rewards efficient preparation. Many of the calculations are mechanical once you recognize the setup.
- Time value of money, net present value, and rate-of-return calculations
- Comparing investment alternatives and evaluating project economics
- Cash flow modeling, including costs, revenues, taxes, and royalties
- Risk and uncertainty in project evaluation
- Professional practice and ethics considerations, including responsibilities under engineering licensure
Because the math is formulaic, this is a domain where disciplined practice can convert quickly into reliable points. Many candidates treat it as a confidence builder early in their study plan.
Working With the Reference Handbook
The exam is closed book except for the supplied electronic NCEES PE Petroleum Reference Handbook. Personal reference material is prohibited, and NCEES guidance lists no separate supplied design standards for Petroleum. The practical implication: your preparation should be organized around the handbook, not around the textbooks on your shelf.
- Learn its layout. Know where each topic lives so that looking up an equation takes seconds, not minutes.
- Practice with it from day one. Do your practice problems using only the handbook so the search habit becomes automatic.
- Identify what it omits. Anything you cannot find reliably in the handbook is something you need to know cold or derive.
- Check calculator rules. Only NCEES-approved calculators are allowed, so confirm your model well before exam day and practice on it.
For a compact reminder of high-yield facts to reinforce alongside the handbook, see the PE-P cheat sheet. You can also work realistic problems in our PE-P practice tests to build handbook fluency under timed conditions.
A Domain-Ordered Study Schedule
There is no single correct calendar, but sequencing by domain and by how much each domain overlaps others is a sound way to organize a roughly twelve-week plan. The logic: start with high-range foundations, build overlap early, and keep the formulaic domains for reinforcement.
Reservoirs foundations
- Rock and fluid properties, volumetrics, and material balance
- Learn the handbook's reservoir sections thoroughly
- Reason: reservoir fundamentals feed Production/Completion directly
Production/Completion (largest range)
- Inflow performance, nodal analysis, artificial lift, and stimulation
- Revisit reservoir concepts as they connect to deliverability
Drilling
- Pressure relationships, hydraulics, casing design, well control, and directional geometry
- Emphasize unit discipline in every problem
Facilities
- Separation, gas handling, pumps and compressors, and surface safety concepts
Economics and Management
- NPV, rate of return, and cash flow problems; professional practice topics
Mixed practice and timing
- Full-length mixed-domain sets under timed conditions using only the handbook
- Targeted review of your weakest domain
Adjust this to your background. A drilling engineer might compress the Drilling block and expand Facilities and Reservoirs, while a reservoir engineer might do the opposite. For a broader view of what to expect from the challenge, our PE-P difficulty guide can help you calibrate your plan, and our PE-P training overview covers preparation formats.
Exam Day Logistics and Pacing
The exam appointment is 9 hours 30 minutes, but the actual testing time is 8 hours 30 minutes. The remainder covers a 2-minute nondisclosure agreement, an 8-minute tutorial, and a 50-minute scheduled break. With 85 questions in 8 hours 30 minutes, you have roughly six minutes per question on average. That is generous for some items and tight for multi-step calculations, so pacing discipline matters.
- Answer everything. There is no deduction for wrong answers, so a guess always beats a blank.
- Flag and move. If a calculation stalls, flag it and return after securing easier points.
- Respect all-or-nothing items. Alternative item types give no partial credit, so verify each component before submitting.
- Use the break deliberately. Step away, eat, and reset rather than rehashing questions.
- Confirm your equipment. Bring only what is permitted, including an NCEES-approved calculator.
On the historical data, the NCEES table updated January 2026 reports a 53% pass rate for first-time candidates (62 examinees) and 55% for repeat candidates (22 examinees). These are small, separate historical cohorts, not predictions for October 2026 and not forecasts of your personal outcome. Our PE-P pass rate analysis explains how to read these figures cautiously.
Frequently Asked Questions
The exam has 85 questions, delivered by computer at a Pearson VUE test center. Items include multiple-choice and alternative item types, with 8 hours 30 minutes of actual testing inside a 9-hour-30-minute appointment.
Production/Completion has the largest published question range at 18-27 questions, so it merits the most study time. Drilling and Reservoirs also carry wide ranges of 17-26 each, while Facilities and Economics and Management are 9-14 each.
The exam is closed book except for the electronic NCEES PE Petroleum Reference Handbook, which is supplied. Personal reference material is prohibited, and only NCEES-approved calculators are permitted. Practice using the handbook well before test day.
NCEES charges USD 400 per attempt. Your licensing board may add its own application and licensure fees, which are separate. See the cost breakdown and weigh it using our ROI analysis.
No. Passing is one requirement, but your licensing board issues and renews the license and sets its own eligibility rules. For the career side, explore PE-P jobs and the salary guide, and keep sharpening your skills with the practice tests on our main site.
Passing PE Petroleum on the first attempt comes down to matching your effort to the exam's actual structure: weight Production/Completion heavily, respect the wide Drilling and Reservoirs ranges, claim the efficient points in Facilities and Economics and Management, and build every skill around the electronic handbook. Verify dates and eligibility with NCEES and your licensing board, then train under realistic conditions until the format feels routine.