TEXAS · WELLS · OCHILTREE COUNTY · MILDRED LEASE · API 42-357-31310 · DISTRICT 08
Mildred #23-141
Ochiltree County · Lone Butte (Cleveland) field · Vertical
Mildred #23-141 (API 42-357-31310) is a plugged well in Ochiltree County, plugged May 27, 2020, last operated by Unbridled Resources LLC.
The RRC has issued one drilling permit, issued September 10, 1982, permitted to 8,900 ft.
It was permitted by Alpar Resources, Inc. and has since transferred to Unbridled Resources LLC on the wellbore schedule.
Its lease has reported 23.7K barrels of oil and 486K mcf of gas since January 1993, with no volume in the three years through April 2026.
Operator of record
Permitted by Alpar Resources, Inc.; the EWA schedule now lists a different operator.
- Based in
- Oklahoma City, OK
- P-5 status
- Active (A)
- P-5 last filed
- Dec 17, 2025
- Permits on file
- 6
- Phone
- (318) 751-3917
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Unbridled Resources LLC |
| Production reports | Unbridled Resources, LLCthrough Apr 2018 |
| Latest permit | Alpar Resources, Inc.Sep 10, 1982 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,900
- total depth, ft
- 1
- permits on file
- Sep 10, 1982
- last permit issued
- Oct 28, 1982
- completed
- 23.7K
- cumulative oil, bbl
- 486K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2018
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 28, 1982
- Shut in
- —
- Plugged
- May 27, 2020
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 |
|---|---|---|---|---|---|---|
| Mildred O-14-6596 | Lone Butte (Cleveland) | Unbridled Resources, LLC | 1 | 23.7K | 486K | Jan 1993 – Apr 2018 |
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.
- 1Plains Petroleum Operating Co.Jan 1993 → Aug 1999
- 2Sapient Energy CorpSep 1999 → Jan 2002
- 3Chesapeake Operating, Inc.Feb 2002 → Oct 2014
- 4Chesapeake Operating, L.L.C.Nov 2014 → May 2016
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 171642-99 | Drill | Alpar Resources, Inc. | Sep 10, 1982 | Sep 10, 1982 | — | 8,900 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 28, 1982 | Mildred O-14-6596 | Lone Butte (Cleveland) | Unbridled Resources LLC | Plugged | — |
| Oct 28, 1982 | Mildred O-14-5223 | Lone Butte (Cleveland) | Alpar Resources Inc. | Plugged | — |
| Oct 28, 1982 | Mildred O-14-5223 | Lone Butte (Cleveland) | Alpar Resources Inc. | Plugged | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,158 | 7,186 | Perforated |
| — | 7,186 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,280 | 12.25 | 1,300 S |
| 2.375 | 7,070 | — | — |
| 7 | 8,850 | 8.75 | 290 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jan 9, 1989 | — | — |
| 00 | Jan 6, 1989 | — | — |
| 00 | Jan 12, 1984 | Nov 9, 1982 | — |
| 00 | Jan 12, 1984 | — | — |
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 42-357-31310 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-357-31310 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it.
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/35731310, documented in the API reference.