WELL · 42-051-31939 · DISTRICT 3
Matcek Frank Unit #1
Burleson County · Giddings (Austin Chalk-3) field · Vertical
Matcek Frank Unit #1 (API 42-051-31939) is a well in Burleson County operated by Williams Clayton Energy Inc., completed December 22, 1982.
The RRC has issued one drilling permit, issued October 23, 1981, permitted to 12,000 ft.
It was permitted by Williams, Clayton W., JR. and has since transferred to Williams Clayton Energy Inc. on the wellbore schedule.
Completion filings report 4 formation tops, including Austin Chalk, Eagle Ford, Buda, Georgetown.
Its 2 leases have reported 4.88K barrels of oil and 201K 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
Permitted by Williams, Clayton W., Jr.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Delinquent (D)
- P-5 last filed
- Apr 11, 2017
- Permits on file
- 1,139
- Phone
- (281) 872-3100
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Williams Clayton Energy Inc. |
| Production reports | Chesapeake Operating, L.L.C.through Feb 2023 |
| Latest permit | Williams, Clayton W., Jr.Oct 23, 1981 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,000
- total depth, ft
- 1
- permits on file
- Oct 23, 1981
- last permit issued
- Dec 22, 1982
- completed
- 4.88K
- cumulative oil, bbl
- 201K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Dec 22, 1982
- 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 |
|---|---|---|---|---|---|---|
| Machann West Unit G-3-178010 | Giddings (Austin Chalk, Gas) | Wildfire Energy Operating LLC | 1 | 0 | 84.7K | May 2000 – Jul 2026 |
| Matcek, Frank Unit O-3-15141 | Giddings (Austin Chalk-3) | Williams, Clayton Energy, Inc. | 1 | 4.88K | 116K | Jan 1993 – Mar 2013 |
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.
- 1Williams, Clayton W., Jr., Inc.Jan 1993 → Apr 1993
- 2Williams, Clayton Energy, L.L.CMay 1993 → May 1993
- 3Williams, Clayton Energy, Inc.Jun 1993 → Nov 2016
- 4Wildhorse Resources Mngt Co, LLCDec 2016 → May 2019
- 5Chesapeake Operating, L.L.C.Jun 2019 → Feb 2023
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 139901-99 | Drill | Williams, Clayton W., Jr. | Oct 23, 1981 | Oct 23, 1981 | — | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-3-178010 | — | — | — | — |
| — | — O-3-15141 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 372 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin Chalk | 8,016 | -7,644 |
| Eagle FordEAGLEFORD | 8,200 | -7,828 |
| Buda | 8,500 | -8,128 |
| Georgetown | 8,590 | -8,218 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,022 | 8,194 | Perforated |
| 8,540 | 8,564 | Perforated |
| 8,592 | 8,676 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 3,937 | 12.25 | 1,360 S |
| 2.375 | 7,920 | — | — |
| 5.5 | 8,830 | 8.75 | 850 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 | Sep 20, 2000 | Jun 29, 2000 | — |
| 00 | Aug 9, 2000 | — | — |
| 00 | Jan 15, 1984 | Jul 18, 1983 | — |
| 00 | Jan 12, 1984 | Jan 25, 1982 | — |
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 42-051-31939 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-051-31939 → 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/05131939, documented in the API reference.