| BOP | BLOW-OUT-PREVENTER |
| BSW | BOTTOM SEDIMENT AND WATER |
| DST | DRILL STEM TEST |
| EMW | EQUIVALENT MUD WEIGHT |
| FM | FORMATION |
| FWL | FREE WATER LEVEL |
| GOR | GAS/OIL RATIO |
| GP | GROUP |
| KB | KELLY BUSHING |
| LOT | LEAK-OFF TEST (NOT NECESSARILY TO LEAK OFF) |
| MD | MEASURED DEPTH |
| MSL | MEAN SEA LEVEL |
| P&A | PLUGGED AND ABANDONED |
| PL | PRODUCTION LICENCE |
| PGB | PRODUCTION GUIDE BASE |
| RGB | RETRIEVABLE (DRILLING) GUIDE BASE |
| RKB | ROTARY KELLY BUSHING |
| TD | TOTAL DEPTH |
| TVD | TRUE VERTICAL DEPTH |
| WOB | WEIGHT ON BIT |
| WOW | WAITING ON WEATHER |