The ONGC AEE Syllabus 2026 is a crucial resource for those candidates who aspire to crack the Oil and Natural Gas Corporation (ONGC) Assistant Executive Engineer (AEE) recruitment examination. Thousands of engineering graduates appear every year for these coveted jobs, and hence it is crucial to understand the syllabus and pattern of the exams.
The examination tests both technical and non-technical subjects; hence, candidates are advised to take a proper roadmap for the preparation. If you study according to the official syllabus, it will not only help you save time but also prioritize the high-weighted topics.
No matter if you are studying Mechanical Engineering, Electrical Engineering, Chemical Engineering, Petroleum Engineering, Geology, Geophysics, or Physics, you must first understand the entire syllabus to get a job in one of the top Maharatna PSUs in India.
ONGC AEE Exam 2026 Overview
Before beginning your preparation, it is important to understand the overall examination structure.
Understanding these basic details helps candidates develop an effective preparation strategy.
ONGC AEE Exam Pattern 2026
The examination evaluates both technical expertise and general aptitude. Candidates should maintain a balance between engineering subjects and aptitude-based sections while preparing.
The question paper consists of four sections:
- Concerned Engineering/Geoscience Discipline: 40 Questions
- General Awareness: 10 Questions
- Aptitude Test: 25 Questions
- English Language: 10 Questions
The total examination duration is 2 hours, requiring candidates to manage their time efficiently across all sections.
ONGC AEE Detailed Branch-Wise Syllabus 2026
The technical syllabus differs according to the engineering discipline. Candidates should prepare only the syllabus applicable to their respective branch while ensuring they also practice aptitude and English regularly.
ONGC AEE Mechanical Engineering Syllabus
The ONGC AEE Mechanical Engineering Syllabus includes core engineering concepts along with industry-specific applications relevant to the oil and gas sector.
Major subjects include:
- Engineering Mathematics
- Linear Algebra
- Calculus
- Differential Equations
- Complex Variables
- Probability and Statistics
- Numerical Methods
- Engineering Mechanics
- Strength of Materials
- Theory of Machines
- Machine Design
- Vibrations
- Fluid Mechanics
- Thermodynamics
- Heat Transfer
- Turbomachinery
- Engineering Materials
- Manufacturing Engineering
- Metrology and Inspection
- Production Planning and Control
- Inventory Management
- Surface Facility Operations
- Offshore Platforms
- Artificial Lift Technology
- Applications in Oil & Gas Business
Candidates should focus on numerical problem-solving, thermodynamics, fluid mechanics, and machine design, as these areas frequently carry significant weight.
ONGC AEE Petroleum Engineering Syllabus
Petroleum Engineering candidates should prepare topics related to upstream oil and gas exploration, drilling, production, and reservoir engineering.
Important topics include:
- Engineering Mathematics
- Petroleum Exploration
- Drilling Technology
- Reservoir Engineering
- Production Engineering
- Formation Evaluation
- Offshore Drilling
- Well Testing
- Enhanced Oil Recovery (EOR)
- Health, Safety & Environment (HSE)
- Oil & Gas Production Operations
- Applications in Oil & Gas Business
A strong understanding of practical field applications is highly beneficial for this discipline.
ONGC AEE Chemical Engineering Syllabus
The Chemical Engineering syllabus combines process engineering fundamentals with industrial applications.
Major topics include:
- Engineering Mathematics
- Process Calculations
- Thermodynamics
- Fluid Mechanics
- Mechanical Operations
- Heat Transfer
- Mass Transfer
- Chemical Reaction Engineering
- Instrumentation
- Process Control
- Plant Design
- Chemical Technology
- Plant Economics
- Applications in Oil & Gas Business
Candidates should pay special attention to numerical questions involving process calculations and thermodynamics.
ONGC AEE Electrical Engineering Syllabus
Electrical Engineering aspirants should build strong conceptual clarity across electrical systems and power engineering.
The syllabus includes:
- Engineering Mathematics
- Electric Circuits
- Electromagnetic Fields
- Signals and Systems
- Electrical Machines
- Power Systems
- Control Systems
- Measurements
- Analog Electronics
- Digital Electronics
- Power Electronics
Electrical Machines, Power Systems, and Control Systems generally form an important part of the examination.
ONGC AEE Geology Syllabus
The Geology syllabus focuses on earth sciences and their applications in petroleum exploration.
Major areas include:
- Earth & Planetary Systems
- Weathering and Soil Formation
- Geomorphology
- Structural Geology
- Crystallography
- Mineralogy
- Igneous Petrology
- Sedimentology
- Metamorphic Petrology
- Paleobiology
- Stratigraphy
- Geochemistry
- Hydrogeology
- Resource Geology
- Remote Sensing
- Well Logging
- Geophysical Prospecting Methods
Candidates should understand both theoretical concepts and field applications.
ONGC AEE Geophysics Syllabus
The Geophysics syllabus focuses on exploration techniques used in locating hydrocarbon resources.
Important topics include:
- Earth & Planetary Systems
- Solid Earth Geophysics
- Earthquake Seismology
- Gravity Methods
- Magnetic Methods
- Electrical Methods
- Electromagnetic Methods
- Seismic Exploration
- Reservoir Geophysics
- Signal Processing
- Geophysical Well Logging
- Radioactive Methods
- Geophysical Inversion
Strong conceptual understanding combined with numerical practice is essential for this branch.
ONGC AEE Physics Syllabus
Physics graduates should prepare for advanced topics commonly covered during postgraduate-level studies.
The syllabus includes:
- Mathematical Physics
- Vector Calculus
- Classical Mechanics
- Lagrangian Mechanics
- Special Theory of Relativity
- Electromagnetic Theory
- Quantum Mechanics
- Thermodynamics
- Statistical Physics
- Atomic Physics
- Molecular Physics
- Solid State Physics
- Electronics
- Nuclear Physics
- Particle Physics
Regular numerical practice is particularly important for this discipline.
Why EA Publications for ONGC AEE Preparation?
Preparing for PSU examinations requires study material that is both concept-oriented and exam-focused.
Engineers Academy (EA Publications) provides comprehensive engineering books designed specifically for competitive examinations like ONGC AEE, GATE, SSC JE, RRB JE, HPCL, BPCL, IOCL, and other PSU recruitment exams.
Students preparing with EA Publications benefit from:
- Complete syllabus coverage.
- Simplified theory with conceptual explanations.
- Thousands of practice questions.
- Previous Year Questions with detailed solutions.
- Exam-oriented notes.
- Quick revision material.
- Mock tests and practice papers.
FAQs
- What is the Exam Pattern for ONGC AEE 2026?
The ONGC AEE exam paper will have 85 objective-type questions in four sections: 40 with questions from the respective engineering discipline, 25 aptitude, 10 general awareness, and 10 English language. The exam duration is 2 hours.
- Is there any difference in the ONGC AEE Syllabus for the different engineering branches?
Yes. The mechanical syllabus is different for Mechanical, Electrical, Chemical, Petroleum, Geology, Geophysics, and Physics, while the general awareness, aptitude, and English are common to all.
- What is the weightage of the subjects in the ONGC AEE exam?
Technical preparation is the most important part of the examination, with 40 out of 85 questions being allocated to the concerned engineering discipline.
- Why is solving previous year papers important for ONGC AEE preparation?
By solving previous year papers, candidates will be able to gain confidence, develop aptitude to manage time during the exam, know the exam pattern, and identify the topics that are repeated in the exam. They also give an insight into the level of conceptual understanding required for PSU recruitment exams.
- What is the best study material for the ONGC AEE exam?
The candidates are advised to use standard engineering books, past years’ question papers, mock tests, formula handbooks and books for exams oriented by EA publications to complete syllabus coverage and for effective revision.