TEXAS · WELLS · LAVACA COUNTY · MARY B. GOLSCH GAS UNIT 1 LEASE · API 42-285-31756 · DISTRICT 02
Mary B. Golsch Gas Unit 1 #4
Lavaca County · Hallettsville East (9800) field · Producing · Vertical
Mary B. Golsch Gas Unit 1 #4 (API 42-285-31756) is a well in Lavaca County operated by Capital Star Oil & Gas Inc., completed April 30, 1994 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued September 14, 1983, permitted to 10,450 ft.
It was permitted by Howell Drilling, Inc. and has since transferred to Capital Star Oil & Gas Inc. on the wellbore schedule.
Completion filings report 3 formation tops, including Yegua, Wilcox, Midway.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Howell Drilling, Inc.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Mar 19, 2026
- Permits on file
- 49
- Phone
- (713) 554-4620
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Capital Star Oil & Gas Inc. |
| Production reports | Capital Star Oil & Gas, Inc.through Apr 2026 |
| Latest permit | Howell Drilling, Inc.Sep 14, 1983 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,450
- total depth, ft
- 1
- permits on file
- Sep 14, 1983
- last permit issued
- Apr 30, 1994
- completed
- 0
- cumulative oil, bbl
- 3.17M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 30, 1994
- 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 lease this well is completed on; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mary B. Golsch Gas Unit 1 G-2-109231 | Hallettsville, East (9800) | Capital Star Oil & Gas, Inc. | 1 | 0 | 3.17M | Jan 1993 – Jul 2026 |
Gas, mcf lease total
Last 12 months 50,157 · prior 12 49,076(+2%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Howell Drilling, Inc.Jan 1993 → Dec 1993
- 2Parker & Parsley Development Co.Jan 1994 → Feb 1995
- 3Parker & Parsley Development L.PMar 1995 → Aug 1997
- 4Pioneer Natural Res. USA, Inc.Sep 1997 → Apr 2018
- 5Prize Operating CompanyJul 1999 → Mar 2002
- 6Gruy Petroleum Management Co.Apr 2002 → Apr 2006
- 7Cimarex Energy Co. of ColoradoMay 2006 → Nov 2008
- 8Sulphur River Exploration, Inc.May 2018 → May 2023
- 9Capital Star Oil & Gas, Inc.Jun 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 212322-99 | Drill | Howell Drilling, Inc. | Jan 13, 1984 | Sep 14, 1983 | — | 10,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Apr 30, 1994 | Mary B. Golsch Gas Unit 1 G-2-109231 | Hallettsville East (9800) | Capital Star Oil & Gas Inc. | Producing | 10,450 |
Formation tops
As filed on W-2/G-1. Subsea from 313 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,006 | 10,028 | Perforated |
| 10,031 | 10,048 | Perforated |
| 10,046 | 10,066 | Perforated |
| 10,068 | 10,078 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,810 | 17.5 | 1,140 S |
| 9.625 | 9,400 | 12.25 | 811 S |
| 5.5 | 10,450 | 8.5 | 1,550 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 | Jul 27, 1994 | May 16, 1994 | — |
| 00 | Mar 23, 1984 | Dec 20, 1983 | — |
| 00 | Mar 10, 1984 | Dec 20, 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 42-285-31756 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-285-31756 → 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/28531756, documented in the API reference.