WELL · 42-177-31720 · DISTRICT 1
Muelker #1
Gonzales County · Cost (Austin Chalk) field · Vertical
Muelker #1 (API 42-177-31720) is a plugged well in Gonzales County, plugged July 19, 1991, last operated by Grc Exploration Inc..
The RRC has issued one drilling permit, issued August 4, 1988, permitted to 7,200 ft.
It was permitted by Mcrae Drilling, Inc. and has since transferred to Grc Exploration Inc. on the wellbore schedule.
Completion filings report 4 formation tops, including Anacacho, Austin Chalk, Eagle Ford, Buda.
Operator of record
Permitted by McRae Drilling, Inc.; the EWA schedule now lists a different operator.
LA Grange, TX · P-5 Y, filed Aug 3, 1992
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | GRC Exploration Inc. |
| Production reports | none |
| Latest permit | McRae Drilling, Inc.Aug 4, 1988 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,200
- total depth, ft
- 1
- permits on file
- Aug 4, 1988
- last permit issued
- May 25, 1989
- completed
- 0
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 25, 1989
- Shut in
- —
- Plugged
- Jul 19, 1991
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 |
|---|---|---|---|---|---|---|
| — O-1-12262 | — | — | 0 | 0 | 0 | — |
No volumes reported on these leases in the last three years.
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 349732-99 | Drill | McRae Drilling, Inc. | Aug 4, 1988 | Aug 4, 1988 | — | 7,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-12262 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 377 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Anacacho | 6,070 | -5,693 |
| Austin Chalk | 6,237 | -5,860 |
| Eagle Ford | 6,525 | -6,148 |
| Buda | 6,592 | -6,215 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,640 | 6,525 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 736 | 12.25 | 280 S |
| 4.5 | 6,685 | 7.875 | 220 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 10, 1989 | Jun 26, 1989 | Yes |
| 00 | Jul 3, 1989 | — | — |
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 42-177-31720 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-177-31720 → 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/17731720, documented in the API reference.