TEXAS · WELLS · BEXAR COUNTY · MULLENS "GMK" LEASE · API 42-029-37425 · DISTRICT 01
Mullens GMK #4
Bexar County · Somerset field · Vertical
Mullens Gmk #4 (API 42-029-37425) is a plugged well in Bexar County, plugged February 15, 2006, last operated by Great Plains Resources Inc..
The RRC has issued one drilling permit, issued March 12, 1986, permitted to 1,600 ft.
It was permitted by Monroe Well Service, Inc. and has since transferred to Great Plains Resources Inc. on the wellbore schedule.
Completion filings report one formation top, including Olmos.
Its lease has reported 3.77K barrels of oil and 20 mcf of gas since January 1993, with no volume in the three years through April 2026. The lease carries 8 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Monroe Well Service, Inc.; the EWA schedule now lists a different operator.
- Based in
- Nixon, TX
- P-5 status
- Delinquent (D)
- P-5 last filed
- Sep 3, 1997
- Phone
- (210) 582-2588
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Great Plains Resources Inc. |
| Production reports | Great Plains Resources, Inc.through Apr 1998 |
| Latest permit | Monroe Well Service, Inc.Mar 12, 1986 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 1,600
- total depth, ft
- 1
- permits on file
- Mar 12, 1986
- last permit issued
- Apr 10, 1986
- completed
- 3.77K
- cumulative oil, bbl
- 20
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 1998
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 10, 1986
- Shut in
- —
- Plugged
- Feb 15, 2006
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 lease this well is completed on; they carry 8 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mullens "GMK" O-1-11467 | Somerset | Great Plains Resources, Inc. | 8 | 3.77K | 20 | Jan 1993 – Apr 1998 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Petro Internatl. Resources, Inc.Jan 1993 → Jan 1993
- 2Vaneta LLP.Feb 1993 → May 1993
- 33-L DrillingJun 1993 → Feb 1994
- 4Aminex USA, Inc.Apr 1994 → Dec 1994
- 5Ginco Operating Co.Jan 1995 → Dec 1995
- 6Great Plains Resources, Inc.Mar 1997 → Apr 1998
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 299484-99 | Drill | Monroe Well Service, Inc. | Mar 12, 1986 | Mar 12, 1986 | Mar 17, 1986 | 1,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Apr 10, 1986 | Mullens GMK O-1-11467 | Somerset | Great Plains Resources Inc. | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 559 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Olmos | 1,299 | -740 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 1,300 | 1,304 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 4.5 | 1,370 | 6.75 | 200 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | May 5, 1986 | Apr 23, 1986 | Yes |
| 00 | May 2, 1986 | — | — |
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 42-029-37425 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-029-37425 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it.
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/02937425, documented in the API reference.