Hello, Arif Khan, the syllabus to prepare GATE for Petroleum Engineering

1. General Aptitude is common for all papers i.e, verbal ability and numerical ability.

2. Petroleum engineering

1. Linear Algebra

2. Calculus

3. Differential Equations

4. Complex Variables

5. Probability and Statistics

6. Numerical Methods

7. Petroleum exploration

8. Oil and Gas Well Drilling Technology

9. Reservoir Engineering

10. Petroleum Production Operations

11. Offshore Drilling and Production Practices

12. Petroleum Formation Evaluation

13. Oil and Gas Well Testing

14. Health Safety and Environment in the Petroleum Industry

15. Enhanced Oil Recovery Techniques

16. Latest trends in Petroleum Engineering

ALL THE BEST!!! for your preparation and exam.