WELL · 42-495-34255 · DISTRICT 8
Mulligan Unit #1001H
Winkler County · Phantom (Wolfcamp) field · Horizontal
Mulligan Unit #1001H (API 42-495-34255) is a horizontal well in Winkler County operated by Cog Operating LLC, completed May 26, 2019.
The RRC has issued one drilling permit, issued November 28, 2018, permitted to 14,000 ft.
Completion filings report 10 formation tops, including Rustler, Colby-Queen, Yates, Queen.
No lease production has been reported under this well’s leases.
Operator of record
Midland, TX · P-5 Y, filed May 4, 2026 · 4,568 permits on file · (432) 853-2355
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | COG Operating LLC |
| Production reports | COG Operating LLCthrough Apr 2026 |
| Latest permit | COG Operating LLCNov 28, 2018 |
- 14,000
- total depth, ft
- 1
- permits on file
- Nov 28, 2018
- last permit issued
- May 26, 2019
- completed
- 0
- cumulative oil, bbl
- 2.63M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 2019 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 26, 2019
- Shut in
- —
- Plugged
- —
Surface location
31.859974, -103.267266
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Winkler County.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the 2 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mulligan Unit G-10-290764 | Phantom (Wolfcamp) | COG Operating LLC | 1 | 0 | 2.63M | May 2019 – Jul 2026 |
| Mulligan Unit O-10-52340 | Phantom (Wolfcamp) | COG Operating LLC | 1 | 0 | 0 | May 2019 – Jul 2021 |
Gas, mcf lease total
Last 12 months 94,650 · prior 12 163,108(-42%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1COG Operating LLCMay 2019 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 847099-99 | Drill | COG Operating LLC | Nov 26, 2018 | Nov 28, 2018 | Dec 17, 2018 | 14,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-10-290764 | — | — | — | — |
| — | — O-10-52340 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,876 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| RustlerRUSTLER - POSSIBLE FLOW; POSSIBL | 725 | 2,151 |
| Colby-Queen | 3,200 | -324 |
| Yates | 3,200 | -324 |
| QueenQUEEN-SEVEN RIVERS | 3,400 | -524 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 4,400 | -1,524 |
| Holt | 4,800 | -1,924 |
| Delaware | 5,000 | -2,124 |
| Glorieta | 5,600 | -2,724 |
| Clear ForkCLEARFORK | 6,200 | -3,324 |
| Wichita-AlbanyWICHITA ALBANY | 6,850 | -3,974 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 12,198 | 21,890 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,179 | 17.5 | 1,090 S |
| 10.75 | 4,927 | 12.25 | 765 S |
| 7.625 | 12,102 | 9.875 | 1,415 S |
| 5.5 | 22,048 | 6.75 | 1,785 S |
Completion filings
W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jun 2, 2021 | May 27, 2021 | Yes |
| 00 | Oct 28, 2019 | Aug 5, 2019 | Yes |
The source documents
Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.
- Wellbore filings for 42-495-34255 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-495-34255 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their search.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
Bullet 27-1542-495-34082
0.1 KM · RSP Permian, LLC · Section with this well →
| Rustler | 725 | 2,153 |
| Yates | 2,280 | 598 |
| Queen | 2,700 | 178 |
| Colby-Queen | 2,900 | -22 |
| San Andres | 3,600 | -722 |
| Delaware | 4,300 | -1,422 |
| Holt | 4,500 | -1,622 |
| Clear Fork | 4,750 | -1,872 |
10 TOPS · FIRST 8
Booth Falls 2722-2742-495-34158
2.1 KM · Felix Energy Holdings II, LLC · Section with this well →
| Rustler | 1,133 | 1,722 |
| Delaware | 5,077 | -2,222 |
| Cherry Canyon | 5,942 | -3,087 |
| Bone Spring | 8,990 | -6,135 |
| Wolfcamp | 11,913 | -9,058 |
| Wichita-Albany | — | |
| Waddell | — | |
| Strawn | — |
20 TOPS · FIRST 8
Booth Falls 2722-2742-495-34159
2.1 KM · Felix Energy Holdings II, LLC · Section with this well →
| Rustler | 1,133 | 1,722 |
| Delaware | 5,077 | -2,222 |
| Colby-Queen | — | |
| Glorieta | — | |
| Holt | — | |
| Queen | — | |
| Yates | — | |
| Clear Fork | — |
10 TOPS · FIRST 8
Manitou 2326-2742-495-34198
3.2 KM · Felix Energy Holdings II, LLC · Section with this well →
| Rustler | 1,759 | 1,098 |
| Delaware | 5,267 | -2,410 |
| Wichita-Albany | — | |
| Clear Fork | — | |
| Colby-Queen | — | |
| Glorieta | — | |
| Holt | — | |
| Queen | — |
10 TOPS · FIRST 8
Manitou 2326-2742-495-34199
3.2 KM · Felix Energy Holdings II, LLC · Section with this well →
| Rustler | 1,759 | 1,099 |
| Delaware | 5,267 | -2,409 |
| Clear Fork | — | |
| Colby-Queen | — | |
| Glorieta | — | |
| Holt | — | |
| Queen | — | |
| San Andres | — |
10 TOPS · FIRST 8
Cottonwood 27-2742-495-33918
3.3 KM · Felix Energy Holdings II, LLC · Section with this well →
| Rustler | 1,200 | 1,668 |
| Delaware | 5,185 | -2,317 |
| Colby-Queen | — | |
| Wichita-Albany | — | |
| San Andres | — | |
| Queen | — | |
| Holt | — | |
| Yates | — |
10 TOPS · FIRST 8
Pearl Pass 2116-27 E42-495-34041
3.3 KM · Felix Energy Holdings II, LLC · Section with this well →
| Glorieta | — | |
| Colby-Queen | — | |
| Clear Fork | — | |
| Yates | — | |
| Wichita-Albany | — | |
| San Andres | — | |
| Rustler | — | |
| Queen | — |
10 TOPS · FIRST 8
Haley 27-542-495-34156
3.4 KM · Oasis Petroleum Permian LLC · Section with this well →
| Delaware | 5,055 | -2,096 |
| Clear Fork | — | |
| Colby-Queen | — | |
| Yates | — | |
| Wichita-Albany | — | |
| San Andres | — | |
| Rustler | — | |
| Queen | — |
10 TOPS · FIRST 8
About this data
Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.
New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease
Developers: this page as JSON is GET /v1/data/wells/49534255, documented in the API reference.