WELL · 42-127-31142 · DISTRICT 1
EL Cid -A- #1
Dimmit County · Pearsall (Austin Chalk) field · Vertical
El Cid -A- #1 (API 42-127-31142) is a well in Dimmit County operated by Bush Mark A. Oil And Gas Inc., completed June 1, 1990.
The RRC has issued 2 drilling permits between 1977 and 1990, permitted to 7,302 ft.
It was permitted by Sanchez-O'Brien Oil & Gas Corp. and has since transferred to Bush Mark A. Oil And Gas Inc. on the wellbore schedule.
Its 2 leases have reported 69.6K barrels of oil and 16.7K mcf of gas since January 1993, last reporting in July 2026. The leases carry 8 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Sanchez-O'Brien Oil & Gas Corp.; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Oct 4, 2025 · 5 permits on file · (713) 739-7695
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Bush Mark A. Oil and Gas Inc. |
| Production reports | Bush, Mark A. Oil and Gas Inc.through Nov 2021 |
| Latest permit | Sanchez-O'Brien Oil & Gas Corp.May 24, 1990 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,302
- total depth, ft
- 2
- permits on file
- May 24, 1990
- last permit issued
- Jun 1, 1990
- completed
- 69.6K
- cumulative oil, bbl
- 16.7K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jun 1, 1990
- 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 8 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| EL Cid -A- O-1-5394 | Pearsall (Austin Chalk) | Bush, Mark A. Oil and Gas Inc. | 5 | 56.7K | 16.7K | Jan 1993 – Jul 2026 |
| EL Cid -C- O-1-13804 | Pearsall (Austin Chalk) | Bush, Mark A. Oil and Gas Inc. | 3 | 12.9K | 0 | Nov 1993 – Jul 2026 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Sanchez-O'Brien Oil & Gas Corp.Jan 1993 → Oct 1994
- 2First Rock, Inc.Nov 1994 → Sep 2005
- 3Thompson, Harry F., JrFeb 1997 → Dec 1997
- 4South Oil, Inc.Apr 2011 → Sep 2017
- 5Bush, Mark A. Oil and Gas Inc.Oct 2017 → Nov 2021
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 373791-99 | Recompletion | Sanchez-O'Brien Oil & Gas Corp. | May 24, 1990 | May 24, 1990 | — | 7,302 |
| 3413-99 | Drill | Enerco Exploration & Mgmt. Co. | Jul 20, 1977 | Jul 20, 1977 | — | 7,300 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-5394 | — | — | — | — |
| — | — O-1-13804 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 1,720 | 1,760 | Perforated |
| 6,751 | — | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 280 | 12.25 | 250 S |
| 8.625 | 280 | — | — |
| 4.5 | 7,226 | 6.75 | 1,030 S |
| 4.5 | 7,226 | — | — |
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 | Nov 30, 1993 | Jul 12, 1990 | — |
| 00 | Dec 5, 1990 | Jul 12, 1990 | — |
| 00 | Jan 12, 1984 | Jun 21, 1977 | — |
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 42-127-31142 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-127-31142 → 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.
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/12731142, documented in the API reference.