WELL · 42-371-00419 · DISTRICT 8
Sibley Unit #I-1W
Pecos County · Vertical
Sibley Unit #I-1W (API 42-371-00419) is a disposal or injection well in Pecos County operated by Four C Oil & Gas Corp. under an active UIC permit.
The RRC has issued 2 drilling permits between 1978 and 1979, permitted to 4,800 ft.
Its 2 leases have reported 1.25M barrels of oil and 35.7K mcf of gas since January 1993, last reporting in July 2026. The leases carry 40 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 14.1K barrels injected in the 12 months reported through May 2025.
Operator of record
- Based in
- Dallas, TX
- P-5 status
- Inactive (I)
- P-5 last filed
- Mar 17, 2023
- Permits on file
- 141
- Phone
- (214) 361-5451
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | none |
| Production reports | Saguaro Petroleum, LLCthrough Mar 2026 |
| Latest permit | Four C Oil & Gas Corp.Nov 5, 1979 |
- 4,800
- total depth, ft
- 2
- permits on file
- Nov 5, 1979
- last permit issued
- —
- completed
- 1.25M
- cumulative oil, bbl
- 35.7K
- 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 40 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Four C San Andres Unit O-10-34031 | Four C (San Andres) | Saguaro Petroleum, LLC | 38 | 1.25M | 35.7K | Nov 1993 – Jul 2026 |
| Sibley Unit O-10-24940 | Four C (San Andres) | Warren, Joe H. | 2 | 1.23K | 10 | Jan 1993 – Feb 1994 |
Oil, barrels lease total
Last 12 months 18,381 · prior 12 21,279(-14%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Four C Oil & Gas Corp.Jan 1993 → Apr 2023
- 2Warren, Joe H.Nov 1993 → Oct 2001
- 3Saguaro Petroleum, LLCMay 2023 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 62961-99 | Other | Four C Oil & Gas Corp. | Nov 5, 1979 | Nov 5, 1979 | Jun 18, 1979 | 4,800 |
| 28232-99 | Other | Four C Oil & Gas Corp. | Jul 3, 1978 | Jul 3, 1978 | Jun 18, 1979 | 4,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-24940 | — | — | — | — |
| — | — O-10-34031 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,299 | 2,345 | Perforated |
| 2,360 | 2,385 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 571 | — | — |
| 2.375 | 2,340 | — | — |
| 5.5 | 4,873 | 9.875 | 1,650 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 | Jun 8, 1994 | Apr 6, 1994 | — |
| 00 | Dec 20, 1993 | Oct 29, 1979 | — |
| 00 | Jan 12, 1984 | Oct 29, 1979 | — |
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 42-371-00419 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-371-00419 → 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.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 14.1K
- bbl, last 12 reported months
- 2.58M
- bbl, all reported
- May 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000013220 | H-1 Injection | Active | 500 | 1,000 | 2,298–2,355 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 14,141 · prior 12 27,195(-48%)
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/37100419, documented in the API reference.