A – B – C – D – E – F – G – H – I – J – K – L – M – N – O – P – R – S – T – U – V – W – X
| BQL | B/QL log |
| BOB | back on bottom |
| BPV | Back pressure valve |
| BO | back-off log |
| BH | Baker Hughes |
| BPLUG | baker plug |
| BVO | ball valve operator |
| bbl | barrel |
| b | Barrel (42 galUS) |
| boed | barrel(s) of oil equivalent per day |
| BCPD | barrels condensate per day |
| BFPD | Barrels of fluid per day |
| BLPD | Barrels of liquid per day |
| boe | Barrels of oil equivalent |
| boe/d | barrels of oil equivalent per day |
| BOEPD | Barrels of oil equivalent per day |
| BOPD | Barrels of oil per day |
| BWPD | Barrels of water per day |
| bwd | barrels of water per day (often used in reference to oil production) |
| BPD | barrels per day |
| BPH | barrels per hour |
| BPM | Barrels per minute |
| BGWP | base of ground-water protection |
| BOSIET | basic offshore safety induction and emergency training |
| BS&W | Basic sediment and water |
| BM | Bay Marchand Area Gulf of Mexico leasing area |
| BBS | Behavioral-based safety |
| BBSM | behaviour-based safety management |
| BDF | below Derrick floor |
| BGL | below ground level (used as a datum for depths in a well) |
| BML | Below mud line |
| BRT | below rotary table (used as a datum for depths in a well) |
| BSL | Below sea level |
| BSML | below sea mean level |
| BS | Bend Stiffener |
| BSR | Bend strength ratio |
| BTEX | benzene, toluene, ethyl-benzene and xylene |
| BAST | Best available and safest technology |
| BHCA | BHC acoustic log |
| BHC | BHC gamma ray log |
| BHCS | BHC sonic log |
| BIVDL | BI/DK/WF/Casing collar locator/gamma ray log |
| BOM | Bill of materials |
| Bcfe | billion cubic feet (of natural gas equivalent) |
| Bcf | billion cubic feet (of natural gas) |
| BOD | Biological Oxygen Demand |
| BIOR | biostratigraphic range log |
| BIORE | biostratigraphy study report |
| BDL | bit data log |
| BSR | Blind shear ram |
| BH | bloodhound |
| BOP | Blowout preventer |
| BOPE | Blowout preventer equipment |
| BSDV | Boarding shutdown valve |
| BP | Boiling point |
| BINXQ | bond index quicklook log |
| BARS | Borehole acoustic reflection survey |
| BGL | borehole geometry log |
| BGT | borehole geometry tool |
| BHL | borehole log |
| BHPRP | borehole pressure report |
| BPFL | borehole profile log |
| BOREH | borehole seismic analysis |
| BHSS | borehole seismic survey |
| BHTV | borehole television report |
| BA | Bottom Assembly (of a riser) |
| BOTHL | bottom hole locator log |
| BTHL | bottom hole log |
| BOTTO | bottom hole pressure/temperature report |
| BHSRE | bottom hole sampling report |
| BLI | bottom of logging interval |
| BOP | bottom of pipe |
| BSR | Bottom simulating reflector |
| BU | bottom up |
| BUL | bottom up lag |
| BHA | Bottomhole assembly |
| BHCP | Bottomhole circulating pressure |
| BHCT | Bottomhole circulating temperature |
| BHFP | Bottomhole flowing pressure |
| BHL | Bottomhole location |
| BHP | Bottomhole pressure |
| BHP | Bottomhole pressure |
| BHST | Bottomhole static temperature |
| BHT | Bottomhole temperature |
| ANP | Brazil’s National Petroleum Agency |
| BA | Brazos Area Gulf of Mexico leasing area |
| BTO/C | break to open/close (valve torque) |
| BFOE | Brent, Forties, Oseberg, and Ekofisk (oil fields) |
| BS | Breton Sound Area Gulf of Mexico leasing area |
| BRPLG | bridge plug log |
| BLP | Bridge-linked platform |
| BA | Bridging agreement |
| BGS | British Geological Survey |
| Btu | British thermal unit |
| BP | Bubble point |
| BUR | build-up rate |
| BOEM | Bureau Ocean Energy Management |
| BSL | Burner safety low (burner flame detector) |
| C4 | butane |
| BWOC | By weight of cement |
| BWOW | By weight of water |