WYOMING · WELLS · CAMPBELL COUNTY · API 49-005-62890
Castle 12-21TH
ActiveHorizontal oil wellWOGCC status: Producing Oil Well
- Operator of record
- Emep II Operating LLC
- Permitted by
- MCL 1 Oil & Gas Wyoming LLC
- County
- Campbell
- Field
- Hilight
A horizontal oil well in Campbell County, Wyoming, operated by Emep II Operating LLC. WOGCC status: producing oil well.
Spudded February 22, 2019.
Completed in one field: Hilight.
It has reported 99,365 bbl of oil, 212,545 Mcf of gas, and 220,732 bbl of water since September 2019; in the twelve months through August 2026, 3,527 bbl, 11,572 Mcf, and 11,541 bbl.
- 3,527
- bbl oil, 12 months through Aug 2026
- 11,572
- Mcf gas, same 12 months
- 11,541
- bbl produced water, same 12 months
- 99,365
- bbl oil since Sep 2019 · 212,545 Mcf gas
- Status
- Approved · WOGCC: Drilling or Drilled Permit
- Received
- Dec 8, 2017
- Approved
- Apr 16, 2018
- Operator
- MCL 1 Oil & Gas Wyoming LLC
- Wellbore
- Horizontal
- Proposed formation
- Turner
- Target depth
- 8,689 ft
- Proposed bottom hole
- 43.79727, -105.33450 ↗
2 APDs on file for this well, newest first
| Approved | Received | Operator | Status | Formation | Target depth |
|---|---|---|---|---|---|
| Apr 16, 2018 | Dec 8, 2017 | MCL 1 Oil & Gas Wyoming LLC | ApprovedDrilling or Drilled Permit | Turner | 8,689 ft |
| — | Apr 3, 2015 | Resolute Wyoming Inc | RejectedDenied or Cancelled | Turner | 13,842 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 3,527 · prior 12 4,526(-22%)
Castle 12-21TH: Oil by month.
Completions
ONE PER RESERVOIR THE WELL IS COMPLETED IN
| Field | Status | Perforations, ft | Completed | Produced | Oil, bbl | Gas, Mcf | Water, bbl |
|---|---|---|---|---|---|---|---|
| HilightTurner | Active | — | Aug 24, 2019 | Sep 2019 to Sep 2026 | 99,365 | 212,545 | 220,732 |
Formation tops
Download CSV →8 tops as filed, by depth. A formation filed more than once is listed each time.
| Formation | Depth |
|---|---|
| FOX HILLS | 4,980 ft |
| LEWIS SHALE | 5,223 ft |
| TEAPOT | 5,772 ft |
| PARKMAN | 6,092 ft |
| SUSSEX | 6,909 ft |
| SHANNON | 7,339 ft |
| NIOBRARA | 8,106 ft |
| TURNER | 9,030 ft |
Source: Wyoming Oil and Gas Conservation Commission, "Geological Markers Based On Form 3"
Formation tops nearby
Operators of record
| Operator | From | To |
|---|---|---|
| Emep II Operating LLC | Jul 31, 2025 | today |
| Vermilion Energy USA LLC | Jan 1, 2000 | Jul 31, 2025 |
Well record
- API number
- 49-005-62890
- Location
- SE SW 1-44N-71W · 202 FSL, 2496 FWL
- Coordinates
- 43.81110, -105.33253 ↗
- Elevation
- 4,916 ft
- Elevation KB
- 4,936 ft
- Total depth
- 8,587 ft
- Basin, as WOGCC files it
- Powder River Basin
- APD
- Approved Apr 16, 2018
- Proposed formation
- Turner
- Target depth
- 8,689 ft
- Spudded
- Feb 22, 2019
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/4900562890, documented in the API reference.