What are the geological structures that make up oil traps?

there are generally three types of strucyures that make up oil traps. 1 anticline structure 2 salt dome structure 3 fualt structure.

Structural faults like normal and reverse thrust faults and anticlines are the best known traps in petroleum plays

Antilinal traps, salt dome traps and faults traps etc are the geological structures that make up oil traps.

If there is a layer of impermeable rock present in this dome shape, then hydrocarbons can accumulate at the crest until the anticline is filled to the spill point - the highest point where hydrocarbons can escape the anticline. This type of trap is by far the most significant to the hydrocarbon industry.