TEXAS · WELLS · CROCKETT COUNTY · MCMULLAN "A" LEASE · API 42-105-36311 · DISTRICT 6E
McMullan A #4
Crockett County · Davidson Ranch (Penn. 7890) field · Vertical
Mcmullan A #4 (API 42-105-36311) is a plugged well in Crockett County, plugged April 7, 2014, last operated by Anadarko E&P Onshore LLC.
The RRC has issued one drilling permit, issued January 19, 1993, permitted to 9,000 ft.
It was permitted by Amax Oil & Gas Inc. and has since transferred to Anadarko E&P Onshore LLC on the wellbore schedule.
Completion filings report one formation top, including Pennsylvanian.
Its lease has reported 1.15M mcf of gas since May 1993, with no volume in the three years through April 2026.
Operator of record
Permitted by Amax Oil & Gas Inc.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Oct 22, 2025
- Permits on file
- 4,575
- Phone
- (713) 215-7000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Anadarko E&P Onshore LLC |
| Production reports | Anadarko E&P Onshore LLCthrough Dec 2013 |
| Latest permit | Amax Oil & Gas Inc.Jan 19, 1993 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,000
- total depth, ft
- 1
- permits on file
- Jan 19, 1993
- last permit issued
- Sep 19, 2001
- completed
- 0
- cumulative oil, bbl
- 1.15M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 1993 THROUGH Dec 2013
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 19, 2001
- Shut in
- —
- Plugged
- Apr 7, 2014
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| McMullan "A" G-9-145385 | Davidson Ranch (Penn. 7890) | Anadarko E&P Onshore LLC | 1 | 0 | 1.15M | May 1993 – Dec 2013 |
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.
- 1Amax Oil & Gas Inc.May 1993 → Mar 1994
- 2Union Pacific Resources CompanyApr 1994 → Jan 2001
- 3Rme Petroleum CompanyFeb 2001 → Nov 2002
- 4Anadarko E&P Company LPDec 2002 → Dec 2012
- 5Anadarko E&P Onshore LLCJan 2013 → Dec 2013
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 408017-99 | Drill | Amax Oil & Gas Inc. | Jan 11, 1993 | Jan 19, 1993 | Feb 26, 1993 | 9,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 19, 2001 | McMullan A G-9-145385 | Davidson Ranch (Penn. 7890) | Anadarko E&P Onshore LLC | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,430 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| PennsylvanianPENN | 7,690 | -5,260 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,692 | 7,854 | Perforated |
| 7,975 | 8,302 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,215 | 11 | 400 S |
| 4.5 | 8,500 | 7.875 | 350 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 | Jan 23, 2002 | Dec 7, 2001 | — |
| 00 | Jul 21, 1993 | May 17, 1993 | Yes |
| 00 | Jun 7, 1993 | — | — |
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 42-105-36311 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-105-36311 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it. The University Lands library has no per-well link: then paste it into its 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/10536311, documented in the API reference.