TEXAS · WELLS · CROCKETT COUNTY · UNIV6 DURYN34 LEASE · API 42-105-40991 · DISTRICT 6E
UNIV6 DURYN34 #10
Crockett County · Sheep Mountain (Consolidated) field · Producing · Vertical
Univ6 Duryn34 #10 (API 42-105-40991) is a well in Crockett County operated by R2q Operating LLC, completed October 30, 2009 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued July 14, 2009, permitted to 9,200 ft.
It was permitted by Cog Operating LLC and has since transferred to R2q Operating LLC on the wellbore schedule.
Completion filings report 6 formation tops, including Spraberry, Dean, Wolfcamp, Strawn.
Its lease has reported 12K barrels of oil and 17.9K mcf of gas since October 2009, last reporting volume in April 2026.
Operator of record
Permitted by COG Operating LLC; the EWA schedule now lists a different operator.
- Based in
- Iowa Park, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Sep 12, 2025
- Permits on file
- 38
- Phone
- (940) 228-1500
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | R2Q Operating LLC |
| Production reports | Extex Operating Companythrough Apr 2026 |
| Latest permit | COG Operating LLCJul 14, 2009 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,200
- total depth, ft
- 1
- permits on file
- Jul 14, 2009
- last permit issued
- Oct 30, 2009
- completed
- 12K
- cumulative oil, bbl
- 17.9K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2009 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 30, 2009
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
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 |
|---|---|---|---|---|---|---|
| UNIV6 DURYN34 O-9-17019 | Sheep Mountain (Consolidated) | Extex Operating Company | 1 | 12K | 17.9K | Oct 2009 – Apr 2026 |
Oil, barrels lease total
Last 12 months 412 · prior 12 36
Gas, mcf lease total
Last 12 months 1 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1COG Operating LLCOct 2009 → Dec 2010
- 2Legacy Reserves Operating LPJan 2011 → Aug 2018
- 3Pbex Operations, LLCSep 2018 → Mar 2021
- 4Extex Operating CompanyApr 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 683020-99 | Drill | COG Operating LLC | Jul 13, 2009 | Jul 14, 2009 | Aug 6, 2009 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 30, 2009 | UNIV6 DURYN34 O-9-17019 | Sheep Mountain (Consolidated) | R2Q Operating LLC | Producing | 9,200 |
Formation tops
As filed on W-2/G-1. Subsea from 2,531 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Spraberry | 6,020 | -3,489 |
| Dean | 6,760 | -4,229 |
| Wolfcamp | 6,860 | -4,329 |
| Strawn | 8,500 | -5,969 |
| PennsylvanianPENN DETRITAL | 8,695 | -6,164 |
| Mississippian | 9,055 | -6,524 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,898 | 8,918 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 704 | 11 | 390 S |
| 4.5 | 9,200 | 7.875 | 963 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 24, 2010 | Dec 3, 2009 | Yes |
| 00 | Dec 12, 2009 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Nov 23, 2010. Density, Neutron. 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 Spraberry, Dean, Wolfcamp, Strawn, Pennsylvanian, Mississippian | TIFF | 3,000 to 9,198 | Nov 23, 2010run Aug 15, 2009 | 10.0 |
"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 42-105-40991 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-105-40991 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it. The University Lands library has no per-well link: then paste it into its 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/10540991, documented in the API reference.