WELL · 42-493-31220 · DISTRICT 1
Lopez #1
Wilson County · Marcelina Creek (Austin Chalk) field · Horizontal · Sidetrack
Lopez #1 (API 42-493-31220) is a plugged horizontal well in Wilson County, plugged May 9, 1994, last operated by Great West Energy & Expl. Inc..
The RRC has issued 2 drilling permits (amended twice) between 1983 and 1991, permitted to 7,500 ft.
Completion filings report 4 formation tops, including Poth Sand, Pecan Sand, Aw Acalho, Austin Chalk.
Its 2 leases have reported 995 barrels of oil and 4 mcf of gas since January 1993, last reporting in August 2003. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Great West Energy & Expl. Inc.
Addison, TX · P-5 Y, filed Mar 2, 2007 · 32 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Great West Energy & Expl. Inc. |
| Production reports | Great West Energy & Expl., Inc.through May 1993 |
| Latest permit | Great West Energy & Expl., Inc.Oct 21, 1991 |
- 7,500
- total depth, ft
- 4
- permits on file
- Oct 21, 1991
- last permit issued
- Jul 1, 1987
- completed
- 995
- cumulative oil, bbl
- 4
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Aug 2003
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 1, 1987
- Shut in
- —
- Plugged
- May 9, 1994
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 |
|---|---|---|---|---|---|---|
| Lopez O-1-11811 | Marcelina Creek (Austin Chalk) | Great West Energy & Expl., Inc. | 1 | 0 | 0 | Jan 1993 – Aug 2003 |
| Lopez Unit #1 O-1-13655 | Floresville, S. (Austin Chalk) | Great West Energy & Expl., Inc. | 1 | 995 | 4 | Jan 1993 – Jan 1995 |
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.
- 1Great West Energy & Expl., Inc.Jan 1993 → May 1993
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 392205-97 | Recompletion · sidetrack | Great West Energy & Expl., Inc. | Sep 8, 1992 | Oct 21, 1991 | — | 6,500 |
| 392205-98 | Recompletion · sidetrack | Great West Energy & Expl., Inc. | Nov 5, 1991 | Oct 21, 1991 | Jan 25, 1992 | 6,344 |
| 392205-99 | Recompletion · sidetrack | Great West Energy & Expl., Inc. | Sep 24, 1991 | Oct 21, 1991 | — | 6,344 |
| 185845-99 | Drill | G. A. S. Production Co | Jan 31, 1983 | Jan 31, 1983 | — | 7,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-11811 | — | — | — | — |
| — | — O-1-13655 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 357 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Poth Sand | 3,894 | -3,537 |
| Pecan Sand | 5,795 | -5,438 |
| AW Acalho | 5,858 | -5,501 |
| Austin Chalk | 6,075 | -5,718 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,115 | 6,344 | Perforated |
| 6,115 | 6,420 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 766 | 12.25 | 350 S |
| 2.375 | 5,847 | — | — |
| 5.5 | 6,115 | 7.875 | 180 S |
| 5.5 | 6,115 | — | — |
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 | Jan 11, 1993 | Dec 9, 1992 | — |
| 00 | Dec 11, 1992 | — | — |
| 00 | Jun 29, 1987 | — | — |
| 00 | Jan 12, 1984 | Apr 11, 1983 | — |
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 42-493-31220 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-493-31220 → 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/49331220, documented in the API reference.