Well Type Codes sorted alphabetically.
View a list of Activity Status Codes, Well Types, or Operators, or Log Types.
| Well Type | Straight Hole | Horizontal | Sidetracked |
| Brine | BR | BRL | BRM |
| Disposal | DS | DSL | DSM |
| Dry Hole | DH | DHL | DHM |
| Dry Wildcat | DW | DWL | DWM |
| Expired Location | EX | EXL | EXM |
| Gas Development | GD | GDL | GDM |
| Gas Extension | GE | GEL | GEM |
| Gas Injection | IG | IGL | IGM |
| Gas Wildcat | GW | GWL | GWM |
| Geothermal | TH | THL | THM |
| Observation | OB | OBL | OBM |
| Oil Development | OD | ODL | ODM |
| Oil Extension | OE | OEL | OEM |
| Oil Wildcat | OW | OWL | OWM |
| Service | SE | SEL | SEM |
| Storage | ST | STL | STM |
| Stratigraphic | SG | SGL | SGM |
| Water Injection | IW | IWL | IWM |
| Type Not Listed | NL | ||
| Unknown | UN |
