TEXAS · WELLS · HEMPHILL COUNTY · MENDOTA 15-NW LEASE · API 42-211-33960 · DISTRICT 08
Mendota 15-NW #6
Hemphill County · Mendota NW. (Granite Wash) field · Producing · Vertical
Mendota 15-NW #6 (API 42-211-33960) is a well in Hemphill County operated by Unbridled Resources LLC, completed December 8, 2007 and listed as producing on the RRC schedule, shut in August 1, 2026.
The RRC has issued one drilling permit, issued August 24, 2007, permitted to 11,450 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 Des Moines, Base Heebner, Missourian, Tonkawa.
Its lease has reported 12.6K barrels of oil and 891K mcf of gas since November 2007, last reporting volume in July 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.Aug 24, 2007 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,450
- total depth, ft
- 1
- permits on file
- Aug 24, 2007
- last permit issued
- Dec 8, 2007
- completed
- 12.6K
- cumulative oil, bbl
- 891K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · NOV 2007 THROUGH JUL 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 8, 2007
- Shut in
- Aug 1, 2026
- 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 15-NW G-14-234014 | Mendota, NW. (Granite Wash) | Unbridled Resources, LLC | 1 | 12.6K | 891K | Nov 2007 – Jul 2026 |
Gas, mcf lease total
Last 12 months 5,293 · prior 12 9,488(-44%)
Wells named Mendota 15-NW
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
Every operator that reported production on this well's lease, in order.
- 1Chesapeake Operating, Inc.Nov 2007 → Oct 2014
- 2Chesapeake Operating, L.L.C.Nov 2014 → Jun 2016
- 34P Energy Texas, LLCJul 2016 → Aug 2020
- 4Unbridled Resources, LLCApr 2021 → Jul 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 642855-99 | Drill | Chesapeake Operating, Inc. | Jul 19, 2007 | Aug 24, 2007 | Oct 15, 2007 | 18,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 8, 2007 | Mendota 15-NW G-14-234014 | Mendota NW. (Granite Wash) | Unbridled Resources LLC | Producing · shut in Aug 1, 2026 | 11,450 |
Formation tops
As filed on W-2/G-1. Subsea from 2,650 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Des Moines | 9,607 | -6,957 |
| Base Heebner | — | — |
| Missourian | — | — |
| Tonkawa | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,103 | 10,546 | Perforated |
| 10,674 | 10,914 | Perforated |
| 10,974 | 11,328 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,197 | 11 | 780 S |
| 4.5 | 11,450 | 7.875 | 480 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 15, 2008 | Jan 22, 2008 | Yes |
| 00 | Mar 26, 2008 | — | — |
Well logs
2 logs loaded from the RRC's log index, the latest received Oct 27, 2010. Cased hole. 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 |
|---|---|---|---|---|
| SURVEYS CASED HOLESpans Des Moines | TIFF | 3,400 to 11,400 | Oct 27, 2010run Nov 7, 2007 | 7.71 |
| SURVEYS CASED HOLESpans Des Moines | TIFF | 8,850 to 11,400 | Oct 27, 2010run Nov 7, 2007 | 2.05 |
"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 42-211-33960 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-211-33960 → 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/21133960, documented in the API reference.