WELL · 42-371-35104 · DISTRICT 8
Sutro Gas Unit #1
Pecos County · Mc Comb (Ellenburger) field · Vertical
Sutro Gas Unit #1 (API 42-371-35104) is a well in Pecos County operated by BC Operating Inc., completed August 29, 1985.
The RRC has issued 2 drilling permits between 1984 and 2014, permitted to 25,500 ft.
Completion filings report 19 formation tops, including Rustler, Silado, Tansill, Yates.
Its 2 leases have reported 36.2K barrels of oil and 6.76M 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
Midland, TX · P-5 Y, filed Dec 4, 2025 · 368 permits on file · (432) 296-9379
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | BC Operating Inc. |
| Production reports | Willowick Production LLCthrough Apr 2026 |
| Latest permit | BC Operating, Inc.Sep 22, 2014 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 25,500
- total depth, ft
- 2
- permits on file
- Sep 22, 2014
- last permit issued
- Aug 29, 1985
- completed
- 36.2K
- cumulative oil, bbl
- 6.76M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Aug 29, 1985
- 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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Sutro O-10-46254 | Wolfbone (Trend Area) | Willowick Production LLC | 1 | 36.2K | 33.1K | Dec 2014 – Jul 2026 |
| Sutro Gas Unit G-10-118797 | Mc Comb (Ellenburger) | BC Operating, Inc. | 1 | 0 | 6.72M | Jan 1993 – Dec 2014 |
Oil, barrels lease total
Last 12 months 2,193 · prior 12 2,125(+3%)
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 → Dec 2011
- 3XTO Energy Inc.Jan 2012 → Nov 2013
- 4BC Operating, Inc.Dec 2014 → Feb 2017
- 5Gary Permian, LLCMar 2017 → Nov 2018
- 6Sven Permian, LLCDec 2022 → Aug 2025
- 7Willowick Production LLCSep 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 795471-99 | Recompletion | BC Operating, Inc. | Sep 3, 2014 | Sep 22, 2014 | Oct 16, 2014 | 25,025 |
| 250943-99 | Drill | Exxon Corp. | Aug 13, 1984 | Sep 11, 1984 | Oct 10, 1984 | 25,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-10-118797 | — | — | — | — |
| — | — O-10-46254 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,979 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rustler | 1,300 | 1,679 |
| Silado | 1,518 | 1,461 |
| Tansill | 2,140 | 839 |
| Yates | 2,255 | 724 |
| Seven Rivers | 2,512 | 467 |
| Queen | 3,214 | -235 |
| Bell Canyon | 4,254 | -1,275 |
| Cherry Canyon | 4,594 | -1,615 |
| Cherry CanyonCHERRY CANYON MARKER | 4,701 | -1,722 |
| Bone SpringBONE SPRINGS | 6,010 | -3,031 |
| Dean | 7,950 | -4,971 |
| Wolfcamp | 8,237 | -5,258 |
| PennsylvanianPENN. DETRITAL | 14,678 | -11,699 |
| PennsylvanianPENN. LIMESTONE | 17,406 | -14,427 |
| Morrow | 19,319 | -16,340 |
| Chester | 19,802 | -16,823 |
| MississippianMISS LIME | 20,107 | -17,128 |
| Devonian | 21,092 | -18,113 |
| Montoya | 21,456 | -18,477 |
| Simpson | 21,840 | -18,861 |
| Ellenburger | 23,965 | -20,986 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,397 | 8,737 | Perforated |
| 23,980 | 24,907 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 20 | 1,554 | 26 | 2,675 S |
| 13.375 | 3,750 | 17.5 | 4,300 S |
| 10.75 | 12,500 | 12.25 | 3,925 S |
| 7 | 17,056 | 12.25 | 1,400 S |
| 7 | 17,056 | — | 1,400 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 11, 2015 | Jan 26, 2015 | — |
| 00 | Nov 26, 1985 | Oct 18, 1985 | — |
| 00 | Nov 22, 1985 | — | — |
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 42-371-35104 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-371-35104 → 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/37135104, documented in the API reference.