TEXAS · WELLS · HEMPHILL COUNTY · MENDOTA 14 SE LEASE · API 42-211-33941 · DISTRICT 08
Mendota 14 SE #4
Hemphill County · Mendota NW. (Granite Wash) field · Producing · Vertical
Mendota 14 SE #4 (API 42-211-33941) is a well in Hemphill County operated by Unbridled Resources LLC, completed October 26, 2007 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued June 29, 2007, permitted to 11,350 ft.
It was permitted by Chesapeake Operating, Inc. and has since transferred to Unbridled Resources LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Base Heebner, Tonkawa, Missourian, Des Moines.
Its lease has reported 15.5K barrels of oil and 1.1M mcf of gas since October 2007, last reporting volume in April 2026.
Operator of record
Permitted by Chesapeake Operating, 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 2026 |
| Latest permit | Chesapeake Operating, Inc.Jun 29, 2007 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,350
- total depth, ft
- 1
- permits on file
- Jun 29, 2007
- last permit issued
- Oct 26, 2007
- completed
- 15.5K
- cumulative oil, bbl
- 1.1M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2007 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 26, 2007
- 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 |
|---|---|---|---|---|---|---|
| Mendota 14 SE G-14-233980 | Mendota, NW. (Granite Wash) | Unbridled Resources, LLC | 1 | 15.5K | 1.1M | Oct 2007 – Apr 2026 |
Gas, mcf lease total
Last 12 months 21,514 · prior 12 25,205(-15%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Chesapeake Operating, Inc.Oct 2007 → Oct 2014
- 2Chesapeake Operating, L.L.C.Nov 2014 → Jun 2016
- 34P Energy Texas, LLCJul 2016 → Oct 2020
- 4Unbridled Resources, LLCNov 2020 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 641032-99 | Drill | Chesapeake Operating, Inc. | Jun 19, 2007 | Jun 29, 2007 | Jul 24, 2007 | 18,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 26, 2007 | Mendota 14 SE G-14-233980 | Mendota NW. (Granite Wash) | Unbridled Resources LLC | Producing | 11,350 |
Formation tops
As filed on W-2/G-1. Subsea from 2,637 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Base Heebner | 7,229 | -4,592 |
| Tonkawa | 7,981 | -5,344 |
| Missourian | 8,506 | -5,869 |
| Des Moines | 9,464 | -6,827 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,035 | 11,236 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,195 | 11 | 685 S |
| 4.5 | 11,350 | 7.875 | 890 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 | Apr 8, 2008 | Feb 22, 2008 | Yes |
| 00 | Mar 24, 2008 | — | — |
Well logs
2 logs loaded from the RRC's log index, the latest received Aug 30, 2010. Density, Neutron, Resistivity. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| NEUTRON/DENSITY POROSITYSpans Base Heebner, Tonkawa, Missourian, Des Moines | TIFF | 1,192 to 11,312 | Aug 30, 2010run Aug 12, 2007 | 4.32 |
| RESISTIVITYSpans Base Heebner, Tonkawa, Missourian, Des Moines | TIFF | 1,192 to 11,339 | Aug 30, 2010run Aug 12, 2007 | 4.13 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-211-33941 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-211-33941 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search 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/21133941, documented in the API reference.