TEXAS · WELLS · HEMPHILL COUNTY · MENDOTA 40 SW LEASE · API 42-211-34217 · DISTRICT 08
Mendota 40 SW #3
Hemphill County · Mendota NW. (Granite Wash) field · Producing · Vertical
Mendota 40 SW #3 (API 42-211-34217) is a well in Hemphill County operated by Unbridled Resources LLC, completed October 29, 2008 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued April 12, 2008, permitted to 11,650 ft.
It was permitted by Chesapeake Operating, Inc. and has since transferred to Unbridled Resources LLC on the wellbore schedule.
Completion filings report 6 formation tops, including Tonkawa, Cleveland, Marmaton, Des Moines.
Its lease has reported 9.96K barrels of oil and 578K mcf of gas since October 2008, last reporting volume in August 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 Aug 2026 |
| Latest permit | Chesapeake Operating, Inc.Apr 12, 2008 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,650
- total depth, ft
- 2
- permits on file
- Apr 12, 2008
- last permit issued
- Oct 29, 2008
- completed
- 9.96K
- cumulative oil, bbl
- 578K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · OCT 2008 THROUGH AUG 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 29, 2008
- 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.
Wells nearby
Every well with a location on file around this well, in any state, nearest first.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH AUG 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 40 SW G-14-244473 | Mendota, NW. (Granite Wash) | Unbridled Resources, LLC | 1 | 9.96K | 578K | Oct 2008 – Aug 2026 |
Gas, mcf lease total
Last 12 months 9,792 · prior 12 11,705(-16%)
Wells named Mendota 40 SW
Unbridled Resources LLC's other wells filed under this lease name in Hemphill County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.
Loading the lease's wellsChain of custody
Operator on the lease's P-4
Each operator named on the P-4 filings for this well's lease (a gas well is its own lease), from the date its filing took effect. The P-4 is filed by lease, so a date before the well was drilled is the lease's.
| Operator | From | To |
|---|---|---|
| Unbridled Resources, LLC | Nov 24, 2020 | today |
| 4P Energy Texas, LLC | Jul 1, 2016 | Nov 24, 2020 |
| Chesapeake Operating, L.L.C. | Nov 1, 2014 | Jul 1, 2016 |
| Chesapeake Operating, Inc. | Oct 29, 2008 | Nov 1, 2014 |
Reporting production
Every operator that reported production on this well's lease, in order.
- 1Chesapeake Operating, Inc.Oct 2008 → Oct 2014
- 2Chesapeake Operating, L.L.C.Nov 2014 → Jun 2016
- 34P Energy Texas, LLCJul 2016 → Oct 2020
- 4Unbridled Resources, LLCNov 2020 → Aug 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 658622-98 | Drill | Chesapeake Operating, Inc. | Jun 25, 2008 | Apr 12, 2008 | Aug 28, 2008 | 14,000 |
| 658622-99 | Drill | Chesapeake Operating, Inc. | Apr 1, 2008 | Apr 12, 2008 | Aug 28, 2008 | 14,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 29, 2008 | Mendota 40 SW G-14-244473 | Mendota NW. (Granite Wash) | Unbridled Resources LLC | Producing | 11,650 |
Formation tops
As filed on W-2/G-1. Subsea from 2,708 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Tonkawa | 8,110 | -5,402 |
| Cleveland | 9,256 | -6,548 |
| MarmatonBASE MARMATON | 9,602 | -6,894 |
| Des Moines | 9,870 | -7,162 |
| Cherokee | 10,846 | -8,138 |
| Atoka | 11,060 | -8,352 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,372 | 11,540 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,225 | 11 | 780 S |
| 4.5 | 11,650 | 7.875 | 560 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 | Feb 12, 2009 | Dec 18, 2008 | Yes |
| 00 | Jan 31, 2009 | — | — |
Well logs
2 logs loaded from the RRC's log index, the latest received Dec 23, 2009. Density, Neutron, Resistivity.
Click a log to get its files from the RRC (free account). It opens in a new tab on the RRC's log search for this well, which lists each file to view or download; the RRC has no address for a single file.
| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| NEUTRON/DENSITY POROSITYSpans Marmaton, Des Moines, Cherokee, Atoka | TIFF | 9,834 to 11,655 | Dec 23, 2009run Sep 20, 2008 | 4.30 |
| RESISTIVITYSpans Marmaton, Des Moines, Cherokee, Atoka | TIFF | 9,834 to 11,655 | Dec 23, 2009run Sep 20, 2008 | 1.43 |
"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.
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.
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 42-211-34217 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-211-34217 → 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/21134217, documented in the API reference.