TEXAS · WELLS · STERLING COUNTY · API 42-431-31075 · DISTRICT 7B
Mahaffey -a- 104 #104
Sterling County · Conger (Penn) field · Producing · Vertical
Mahaffey -A- 104 #104 (API 42-431-31075) is a well in Sterling County operated by Burk Royalty CO. Ltd., completed November 25, 1981 and listed as producing on the RRC schedule, shut in March 1, 2026.
The RRC has issued one drilling permit, issued October 23, 1981, permitted to 8,300 ft.
It was permitted by Wagner & Brown and has since transferred to Burk Royalty CO. Ltd. on the wellbore schedule.
Completion filings report 5 formation tops, including Yates, San Andres, Clear Fork, Cisco.
Its 2 leases have reported 3.65K barrels of oil and 191K mcf of gas since January 1993, last reporting volume in February 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Wagner & Brown; the EWA schedule now lists a different operator.
- Based in
- Wichita Falls, TX
- P-5 status
- Active (A)
- P-5 last filed
- Dec 4, 2025
- Permits on file
- 384
- Phone
- (940) 397-8600
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Burk Royalty Co. Ltd. |
| Production reports | Burk Royalty Co., Ltd.through Feb 2026 |
| Latest permit | Wagner & BrownOct 23, 1981 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,300
- total depth, ft
- 1
- permits on file
- Oct 23, 1981
- last permit issued
- Nov 25, 1981
- completed
- 3.65K
- cumulative oil, bbl
- 191K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Feb 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 25, 1981
- Shut in
- Mar 1, 2026
- 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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mahaffey -a- 104 G-10-219467 | Conger (Penn) | Burk Royalty Co., Ltd. | 1 | 512 | 61K | Jul 2006 – Feb 2026 |
| Mahaffey -A- O-10-27030 | Conger (Penn) | Range Production Company | 1 | 3.13K | 130K | Jan 1993 – Jun 2006 |
Gas, mcf lease total
Last 12 months 569 · prior 12 2,389(-76%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Wagner & Brown, Ltd.Jan 1993 → Dec 2003
- 2Range Production CompanyJan 2004 → Jul 2014
- 3EQT Production Texas, LLCAug 2014 → Jun 2018
- 4Stanolind Production LLCJul 2018 → Dec 2020
- 5Slant Operating, LLCJan 2021 → Dec 2021
- 6Burk Royalty Co., Ltd.Jan 2022 → Feb 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 140644-99 | Drill | Wagner & Brown | Oct 23, 1981 | Oct 23, 1981 | — | 8,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 25, 1981 | Mahaffey -a- 104 G-10-219467 | Conger (Penn) | Burk Royalty Co. Ltd. | Producing · shut in Mar 1, 2026 | 8,300 |
| Nov 25, 1981 | Mahaffey -A- O-10-27030 | Conger (Penn) | Range Production Company | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,530 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 1,188 | 1,342 |
| San Andres | 2,199 | 331 |
| Clear ForkCLEARFORK | 3,186 | -656 |
| CiscoCISCO-SAND | 7,420 | -4,890 |
| CanyonCANYON-SAND | 7,569 | -5,039 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,476 | 7,695 | Perforated |
| 7,476 | 8,100 | Perforated |
| 7,781 | 7,981 | Perforated |
| 8,070 | 8,100 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,958 | 11 | 1,200 S |
| 2.375 | 8,102 | — | — |
| 4.5 | 8,263 | 7.875 | 1,500 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 | Feb 8, 2007 | Sep 20, 2006 | — |
| 00 | Sep 26, 2006 | — | — |
| 00 | Jan 12, 1984 | Dec 18, 1981 | — |
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 42-431-31075 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-431-31075 → 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/43131075, documented in the API reference.