WELL · 42-041-30816 · DISTRICT 3
Uvacek #1
Brazos County · Giddings (Austin Chalk Gas) field · Horizontal
Uvacek #1 (API 42-041-30816) is a plugged horizontal well in Brazos County, plugged June 25, 2013, last operated by Shidler Mark L. Inc..
The RRC has issued 2 drilling permits between 1982 and 2001, permitted to 11,000 ft.
It was permitted by Crimson Energy Company, LC and has since transferred to Shidler Mark L. Inc. on the wellbore schedule.
Completion filings report one formation top, including Austin Chalk.
Its 2 leases have reported 8.22K barrels of oil and 1.01M mcf of gas since January 1993, last reporting in May 2015. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Crimson Energy Company, LC; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Jul 4, 2026 · 6 permits on file · (713) 252-7746
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Shidler Mark L. Inc. |
| Production reports | Shidler, Mark L., Inc.through May 2012 |
| Latest permit | Crimson Energy Company, LCOct 4, 2001 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,000
- total depth, ft
- 2
- permits on file
- Oct 4, 2001
- last permit issued
- May 2, 2002
- completed
- 8.22K
- cumulative oil, bbl
- 1.01M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH May 2015
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 2, 2002
- Shut in
- —
- Plugged
- Jun 25, 2013
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 |
|---|---|---|---|---|---|---|
| Uvacek G-3-189840 | Giddings (Austin Chalk, Gas) | Shidler, Mark L., Inc. | 1 | 0 | 987K | May 2002 – May 2015 |
| Ferreri, Joe A. O-3-16626 | Bryan (Austin Chalk) | Shidler, Mark L., Inc. | 1 | 8.22K | 19.7K | Jan 1993 – Dec 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.
- 1Reserve Production, Inc.Jan 1993 → Mar 1997
- 2Mineral Technologies, Inc.Apr 1997 → Apr 1998
- 3Geosouthern Energy CorporationJun 1998 → Oct 2000
- 4Crimson Energy Company, LCMay 2002 → Mar 2004
- 5Huber, J. M., CorporationApr 2004 → May 2004
- 6Huber Energy Panhandle L.P.Jun 2004 → Sep 2004
- 7Huber Energy L.P.Oct 2004 → Sep 2006
- 8Rockford Energy Partners II, LLCOct 2006 → Sep 2007
- 9Rockford Panhandle, LLCOct 2007 → Mar 2008
- 10Rockford Energy Partners Iii,llcApr 2008 → Dec 2010
- 11Shidler, Mark L., Inc.Jan 2011 → May 2012
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 513901-99 | Recompletion | Crimson Energy Company, LC | Sep 25, 2001 | Oct 4, 2001 | Apr 13, 2002 | 10,400 |
| 172315-99 | Drill | Chaparral Minerals, Inc. | Sep 17, 1982 | Sep 17, 1982 | — | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-3-189840 | — | — | — | — |
| — | — O-3-16626 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 309 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin Chalk | 9,852 | -9,543 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,820 | 11,386 | Perforated |
| 9,963 | 10,742 | Open hole |
| 9,963 | 11,623 | Perforated |
| 10,170 | 10,250 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 3,934 | 12.25 | 1,240 S |
| 8.625 | 3,934 | 12.25 | 1,240 S |
| 2.375 | 10,298 | — | — |
| 5.5 | 10,407 | 8.75 | 265 S |
| 4.5 | 10,407 | 8.75 | 265 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 27, 2002 | Jun 14, 2002 | — |
| 00 | Aug 9, 2002 | — | — |
| 00 | Jan 12, 1984 | Jun 21, 1983 | — |
| 00 | Jan 12, 1984 | Feb 28, 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 42-041-30816 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-041-30816 → 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/04130816, documented in the API reference.