E
- E&A – Exploration and Appraisal
- E&P – Exploration and Production
- EAGE – European Association of Geoscientists & Engineers
- ECD – Equivalent Circulating Density
- ECP – External Casing Packer
- ECRD – Electrically Controlled Release Tool
- EDP – Exploration Drilling Program Report
- EDP – Emergency Disconnect Package
- EDR – Exploration Drilling Report
- EDS – Emergency Disconnection Sequence
- EFL – Electrical Flying Lead
- EFR – Engineering Factual Report
- EHT – Electric Heat Trace
- EGMBE – Ethylene Glycol Mono-Butyl Ether
- ELT – Economic Limit Test
- EL – Electric Log
- EM – EMOP Log
- EMOP – EMOP Well Site Processing Log
- EMP – Electromagnetic Propagation Log
- EMG – Equivalent Mud Gradient
- EMW – Equivalent Mud Weight
- EN PI – Enhanced Productivity Index Log
- ENG – Engineering Log
- ENGF – Engineer Factual Report
- ENGPD – Engineering Porosity Data
- Eni – Ente Nazionale Idrocarburi S.p.A. (Italy)
- ENJ – Enerjet Log
- EOFL – End of Field Life
- EOR – Enhanced Oil Recovery
- EOT – End of Tubing
- EOW – End Of Well Report
- EPCU – Electrical Power Conditioning Unit
- EPIDORIS – Exploration and Production Integrated Drilling Operations and Reservoir Information System
- EPL – EPL Log
- EPLG – Epilog
- EPLPC – EPL-PCD-SGR Log
- EPT – Electromagnetic Propagation
- EPTNG – EPT-NGT Log
- ER(D) – Extended Reach (Drilling)
- ERT – Emergency Response Training
- ESD – Emergency Shut-Down
- ESP – Electric Submersible Pump
- ETAP – Eastern Trough Area Project
- ETTD – Electromagnetic Thickness Test
- ETU – Electrical Test Unit
- EUR – Estimated Ultimate Recovery
- EVARE – Evaluation Report
- EWR – End Of Well Report
- EXL – or XL, Exploration Licence (United Kingdom), a type of onshore licence issued between the First Onshore Licensing Round (1986) and the Sixth (1992)
- EZSV – EZSV Log
Read more about this topic: List Of Oil Field Acronyms