WELL · 42-433-01052 · DISTRICT 7
Weir W. C. Estate -A- #1 A
Stonewall County · Guest (Canyon Sand) field · Vertical
Weir W. C. Estate -A- #1 A (API 42-433-01052) is a disposal or injection well in Stonewall County operated by Marathon Oil Company under an active UIC permit.
The RRC has issued one drilling permit (amended once), issued January 17, 1997, permitted to 5,500 ft.
It was permitted by J.F.G. Oil CO. and has since transferred to Marathon Oil Company on the wellbore schedule.
Completion filings report 5 formation tops, including Coleman Jct, Coleman Junction, Guest Canyon Sand, Canyon.
Its 2 leases have reported 637K barrels of oil and 377K mcf of gas since January 1993, last reporting in July 2026. The leases carry 76 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 18.7K barrels injected in the 12 months reported through September 2025.
Operator of record
Permitted by J.F.G. Oil Co.; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Apr 4, 2026 · 3,707 permits on file · (800) 332-9449
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Marathon Oil Company |
| Production reports | L.C.S. Production Companythrough Apr 2026 |
| Latest permit | J.F.G. Oil Co.Jan 22, 1998 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,500
- total depth, ft
- 2
- permits on file
- Jan 22, 1998
- last permit issued
- —
- completed
- 637K
- cumulative oil, bbl
- 377K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- —
- Shut in
- —
- Plugged
- —
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 76 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| McMillin (Canyon Sand) Unit O-8-11863 | Guest (Canyon Sand) | L.C.S. Production Company | 75 | 637K | 377K | Jan 1993 – Jul 2026 |
| White Knight "A" O-8-28474 | Guest (Canyon Sand) | L.C.S. Production Company | 1 | 4 | 0 | Aug 1997 – Jun 2016 |
Oil, barrels lease total
Last 12 months 37,572 · prior 12 30,030(+25%)
Gas, mcf lease total
Last 12 months 11,141 · prior 12 10,580(+5%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Petrotex, Inc.Jan 1993 → Sep 1999
- 2J.F.G. Oil Co.Aug 1997 → Aug 1997
- 3Crown Petroleum Corp.Oct 1999 → Apr 2015
- 4L.C.S. Production CompanyMay 2015 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 457394-98 | Drill | J.F.G. Oil Co. | Jan 22, 1998 | Jan 22, 1998 | Apr 11, 1997 | 5,500 |
| 457394-99 | Drill | J.F.G. Oil Co. | Jan 15, 1997 | Jan 17, 1997 | Apr 11, 1997 | 5,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-8-11863 | — | — | — | — |
| — | — O-8-28474 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 1,813 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Coleman JCT | 2,150 | -337 |
| Coleman Junction | 2,150 | -337 |
| Guest Canyon Sand | 4,545 | -2,732 |
| CanyonCANYON SAND | 4,678 | -2,865 |
| Reef | 5,160 | -3,347 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,545 | 4,548 | Open hole |
| 4,552 | 4,977 | Perforated |
| 4,564 | 4,584 | Open hole |
| 4,678 | 4,708 | Perforated |
| 4,678 | 4,708 | Open hole |
| 4,942 | 4,948 | Perforated |
| — | 4,677 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 200 | 13.375 | 200 S |
| 9.625 | 286 | 13.75 | 200 S |
| 7 | 4,739 | 8.75 | 150 S |
| 4.5 | 4,990 | 7.875 | 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. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jul 29, 2019 | Jun 4, 2019 | — |
| 00 | Feb 26, 2019 | Feb 20, 2019 | — |
| 00 | Jun 1, 2016 | Jun 1, 2016 | — |
| 00 | Jul 6, 1998 | Aug 29, 1997 | Yes |
| 00 | Jun 15, 1998 | — | — |
| 00 | Jan 12, 1984 | Mar 27, 1959 | — |
| 00 | Jan 12, 1984 | — | — |
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 42-433-01052 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-433-01052 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 18.7K
- bbl, last 12 reported months
- 164K
- bbl, all reported
- Sep 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000007475 | H-1 Injection | Active | 500 | 2,096 | 4,192–5,151 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 18,725 · prior 12 22,177(-16%)
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/43301052, documented in the API reference.