TEXAS · WELLS · PECOS COUNTY · API 42-371-10723 · DISTRICT 7B
Coyanosa Oil Unit No. 1 #1
Pecos County · Coyanosa (Wolfcamp) field · Producing · Vertical
Coyanosa Oil Unit NO. 1 #1 (API 42-371-10723) is a well in Pecos County operated by Xto Energy Inc., completed May 26, 1999 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued May 29, 1998, permitted to 15,649 ft.
It was permitted by Exxon Corp. and has since transferred to Xto Energy Inc. on the wellbore schedule.
Completion filings report 6 formation tops, including Pennsylvanian, Mississippian, Devonian, Fusselman.
Its 2 leases have reported 16.9K barrels of oil and 166K mcf of gas since January 1993, last reporting in July 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Exxon Corp.; the EWA schedule now lists a different operator.
- Based in
- Spring, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Apr 8, 2026
- Permits on file
- 16,156
- Phone
- (346) 502-1572
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Exxon Corp. |
| Production reports | XTO Energy Inc.through Apr 2026 |
| Latest permit | Exxon Corp.May 29, 1998 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 15,649
- total depth, ft
- 2
- permits on file
- May 29, 1998
- last permit issued
- May 26, 1999
- completed
- 16.9K
- cumulative oil, bbl
- 166K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 26, 1999
- Shut in
- —
- 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 |
|---|---|---|---|---|---|---|
| Coyanosa Oil Unit No. 1 O-10-36126 | Coyanosa (Wolfcamp) | XTO Energy Inc. | 1 | 16.9K | 152K | Jul 1999 – Jul 2026 |
| Coyanosa Unit No. 3 G-10-40493 | Coyanosa (Ellenburger) | Exxon Corp. | 1 | 0 | 13.9K | Jan 1993 – May 1999 |
Gas, mcf lease total
Last 12 months 2,270 · prior 12 2,376(-4%)
Oil, barrels lease total
Last 12 months 209 · prior 12 204(+2%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Exxon Corp.Jan 1993 → Mar 2000
- 2Exxon Mobil CorporationApr 2000 → Nov 2011
- 3XTO Energy Inc.Jan 2012 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 476523-97 | Recompletion | Exxon Corp. | Sep 10, 1999 | May 29, 1998 | Jul 29, 1998 | 15,649 |
| 476523-99 | Recompletion | Exxon Corp. | May 22, 1998 | May 29, 1998 | — | 15,649 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| May 26, 1999 | Coyanosa Oil Unit No. 1 O-10-36126 | Coyanosa (Wolfcamp) | XTO Energy Inc. | Producing | 15,649 |
| Nov 1, 1966 | Coyanosa Unit No. 3 G-10-40493 | Coyanosa (Ellenburger) | Exxon Corp. | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,650 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Pennsylvanian | 9,991 | -7,341 |
| Mississippian | 10,708 | -8,058 |
| Devonian | 11,621 | -8,971 |
| Fusselman | 12,421 | -9,771 |
| Simpson | 12,992 | -10,342 |
| Waddell | 14,428 | -11,778 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,317 | 10,339 | Perforated |
| 10,351 | 10,376 | Perforated |
| 14,898 | 15,588 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 11.75 | 1,807 | — | — |
| 11.75 | 1,835 | 15 | 1,725 S |
| 8.625 | 9,204 | — | — |
| 8.625 | 9,230 | 10.625 | 4,700 S |
| 2.5 | 14,770 | — | — |
| 5 | 15,624 | — | — |
| 5 | 15,649 | 7.625 | — |
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 | Dec 22, 1999 | Nov 9, 1999 | — |
| 00 | Dec 9, 1999 | — | — |
| 00 | May 15, 1997 | Mar 21, 1997 | — |
| 00 | Jan 12, 1984 | Nov 21, 1966 | — |
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 42-371-10723 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-371-10723 → 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.
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/37110723, documented in the API reference.