WYOMING · WELLS · BIG HORN COUNTY · API 49-003-21029
Ainsworth Unit 21-4P
ActiveVertical oil wellWOGCC status: Producing Oil Well
- Operator of record
- Natural Gas Processing Company
- Permitted by
- KCS Mountain Resources Inc
- County
- Big Horn
- Field
- Manderson
A vertical oil well in Big Horn County, Wyoming, operated by Natural Gas Processing Company. WOGCC status: producing oil well.
Spudded January 2, 1998.
Completed in one field: Manderson.
It has reported 111,712 bbl of oil, 312,927 Mcf of gas, and 2,815 bbl of water since June 1998; in the twelve months through August 2026, 139 bbl, 1,622 Mcf, and 0 bbl.
- 139
- bbl oil, 12 months through Aug 2026
- 1,622
- Mcf gas, same 12 months
- 0
- bbl produced water, same 12 months
- 111,712
- bbl oil since Jun 1998 · 312,927 Mcf gas
- Status
- Approved · WOGCC: Drilling or Drilled Permit
- Approved
- Dec 15, 1997
- Operator
- KCS Mountain Resources Inc
- Target depth
- 7,750 ft
Wells nearby
Every well with a location on file around this well, in any state, nearest first.
Reported production
Every month on file for this well on form 2, summed across its fields and the operators that filed it. The newest months can still be amended.
12 months through Aug 2026 139 · prior 12 377(-63%)
Ainsworth Unit 21-4P: Oil by month.
Completions
ONE PER RESERVOIR THE WELL IS COMPLETED IN
| Field | Status | Perforations, ft | Completed | Produced | Oil, bbl | Gas, Mcf | Water, bbl |
|---|---|---|---|---|---|---|---|
| MandersonPhosphoria | Active | 7,900 to 7,930 MD | Mar 6, 1998 | Jun 1998 to Sep 2026 | 111,712 | 312,927 | 2,815 |
Formation tops
Download CSV →21 tops as filed, by depth. A formation filed more than once is listed each time.
| Formation | Depth |
|---|---|
| CODY | 1,704 ft |
| FRONTIER | 4,553 ft |
| FRONTIER A | 4,750 ft |
| FRONTIER 2 | 4,932 ft |
| FRONTIER 3 | 5,235 ft |
| MOWRY | 5,340 ft |
| OCTH LOUIE | 5,472 ft |
| MUDDY | 5,874 ft |
| DAKOTA SILT | 6,130 ft |
| GREYBULL | 6,202 ft |
| FUSON | 6,244 ft |
| LAKOTA | 6,333 ft |
| MORRISON | 6,480 ft |
| SUNDANCE | 6,640 ft |
| GYPSUM SPRINGS | 6,970 ft |
| CHUGWATER | 7,056 ft |
| CURTIS | 7,093 ft |
| ALCOVA | 7,130 ft |
| CROW MOUNTAIN | 7,157 ft |
| DINWOODY | 7,840 ft |
| PHOSPHORIA | 7,890 ft |
Source: Wyoming Oil and Gas Conservation Commission, "Geological Markers Based On Form 3"
Formation tops nearby
Operators of record
| Operator | From | To |
|---|---|---|
| Natural Gas Processing Company | Jan 1, 2016 | today |
| Saga Petroleum LLC | Nov 1, 2006 | Jan 1, 2016 |
| KCS Mountain Resources Inc | Jan 1, 2000 | Nov 1, 2006 |
Well record
- API number
- 49-003-21029
- Location
- NE NW 4-49N-92W · 910 FNL, 2120 FWL
- Coordinates
- 44.25109, -107.91440 ↗
- Elevation
- 4,091 ft
- Elevation KB
- 4,115 ft
- Total depth
- 7,750 ft
- Perforations
- 7,900 to 7,930 ft
- Basin, as WOGCC files it
- Bighorn Basin
- APD
- Approved Dec 15, 1997
- Target depth
- 7,750 ft
- Spudded
- Jan 2, 1998
About this data
Wyoming Oil and Gas Conservation Commission (WOGCC), from its public database extracts. Status and type are in WOGCC's own words. Production and injection are what operators filed on form 2, by well and month; twelve-month figures end in Aug 2026, the last month whose filings are in. Locations are from the well's location plat and are approximate. The Commission's production file names each well's current operator on every month, so an operator's figures are those of the wells it operates today. Nothing is estimated.
Developers: this page as JSON is GET /v1/data/wells/4900321029, documented in the API reference.