TEXAS · WELLS · GAINES COUNTY · API 42-165-35391 · DISTRICT 7B
G-M-K West Unit #1
Gaines County · G-M-K West (San Andres) field · Producing · Vertical
G-M-K West Unit #1 (API 42-165-35391) is a well in Gaines County operated by Hilcorp Energy Company, completed June 1, 1999 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued March 18, 1999, permitted to 5,825 ft.
It was permitted by Apache Corporation and has since transferred to Hilcorp Energy Company on the wellbore schedule.
Completion filings report 4 formation tops, including Rustler, Yates, Grayburg, San Andres.
Its 2 leases have reported 1.85M barrels of oil and 407K mcf of gas since June 1999, last reporting in July 2026. The leases carry 22 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Apache Corporation; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Mar 27, 2026
- Permits on file
- 3,454
- Phone
- (713) 209-2400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Apache Corporation |
| Production reports | Hilcorp Energy Companythrough Apr 2026 |
| Latest permit | Apache CorporationMar 18, 1999 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,825
- total depth, ft
- 2
- permits on file
- Mar 18, 1999
- last permit issued
- Jun 1, 1999
- completed
- 1.85M
- cumulative oil, bbl
- 407K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jun 1999 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jun 1, 1999
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
Surface location
No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.
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 22 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| G-M-K West Unit O-11-68366 | G-M-K, West (San Andres) | Hilcorp Energy Company | 19 | 1.77M | 386K | Dec 2001 – Jul 2026 |
| Granger O-11-68102 | G-M-K, West (San Andres) | Apache Corporation | 3 | 75.1K | 21.6K | Jun 1999 – Feb 2002 |
Oil, barrels lease total
Last 12 months 15,533 · prior 12 13,350(+16%)
Gas, mcf lease total
Last 12 months 4,730 · prior 12 3,606(+31%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Apache CorporationJun 1999 → Nov 2024
- 2Hilcorp Energy CompanyDec 2024 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 483147-98 | Drill | Apache Corporation | Jun 9, 1999 | Mar 18, 1999 | — | 6,000 |
| 483147-99 | Drill | Apache Corporation | Mar 8, 1999 | Mar 18, 1999 | May 8, 1999 | 6,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 1, 1999 | G-M-K West Unit O-11-68366 | G-M-K West (San Andres) | Hilcorp Energy Company | Producing | 5,825 |
| Jun 1, 1999 | Granger O-11-68102 | G-M-K West (San Andres) | Apache Corporation | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,263 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rustler | 2,404 | 859 |
| Yates | 3,467 | -204 |
| Grayburg | 4,960 | -1,697 |
| San Andres | 5,080 | -1,817 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,557 | 5,693 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 411 | 12.25 | 250 S |
| 5.5 | 5,825 | 7.875 | 1,250 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 | Nov 21, 2001 | Jun 18, 1999 | Yes |
| 00 | Aug 4, 1999 | Jun 18, 1999 | Yes |
| 00 | Jun 25, 1999 | — | — |
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 42-165-35391 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-165-35391 → 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.
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/16535391, documented in the API reference.