TEXAS · WELLS · REEVES COUNTY · API 42-389-32830 · DISTRICT 7B

Dubya State 12 #8

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Reeves County · Wolfbone (Trend Area) field · Producing  · Vertical

Dubya State 12 #8 (API 42-389-32830) is a well in Reeves County operated by U.S. Energy Development Corp, completed July 24, 2012 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued May 5, 2011, permitted to 11,606 ft.

It was permitted by Cog Operating LLC and has since transferred to U.S. Energy Development Corp on the wellbore schedule.

Completion filings report 3 formation tops, including Delaware, Bone Spring, Wolfcamp.

Its 2 leases have reported 339K barrels of oil and 643K mcf of gas since March 2011, last reporting volume in April 2026. The leases carry 5 wells, so these are lease totals, not this well alone.

Operator of record

U.S. Energy Development Corp

Permitted by COG Operating LLC; the EWA schedule now lists a different operator.

Based in
Fort Worth, TX
P-5 status
Active (A)
P-5 last filed
Feb 18, 2026
Permits on file
225
Phone
(682) 305-2868

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleU.S. Energy Development Corp
Production reportsU.S. Energy Development Corpthrough Apr 2026
Latest permitCOG Operating LLCMay 5, 2011

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

11,606
total depth, ft
2
permits on file
May 5, 2011
last permit issued
Jul 24, 2012
completed
339K
cumulative oil, bbl
643K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Apr 2011 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jul 24, 2012
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 2 leases this well is completed on; they carry 5 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Dubya State 12 O-10-41620Wolfbone (Trend Area)U.S. Energy Development Corp4339K643KMar 2011 – Apr 2026
Dubya State 12 O-10-42483Wolfbone (Trend Area)COG Operating LLC100Apr 2012 – —

Oil, barrels lease total

Last 12 months 15,419 · prior 12 16,141(-4%)

01K2K202420252026

Gas, mcf lease total

Last 12 months 34,342 · prior 12 25,798(+33%)

02K4K6K202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1COG Operating LLCApr 2011 → Mar 2025
  2. 2U.S. Energy Development CorpApr 2025 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
715225-98DrillCOG Operating LLCAug 17, 2011May 5, 2011Dec 8, 201113,500
715225-99DrillCOG Operating LLCApr 28, 2011May 5, 2011—13,500

Completions

CompletedLeaseFieldOperatorStatusDepth
Jul 24, 2012Dubya State 12 O-10-41620Wolfbone (Trend Area)U.S. Energy Development CorpProducing11,606
Mar 14, 2012Dubya State 12 O-10-42483Wolfbone (Trend Area)COG Operating LLCNot on Schedule—

Formation tops

As filed on W-2/G-1. Subsea from 2,686 ft elevation.Download CSV →

FormationMD ftSubsea
Delaware5,109-2,423
Bone Spring8,155-5,469
Wolfcamp10,630-7,944

Perforations

Perforated and open-hole intervals.

FromToType
9,21011,349Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.3751,43317.51,150 S
9.6254,97312.251,250 S
5.511,6068.752,275 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 →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Jun 20, 2013Aug 6, 2012—
00Apr 18, 2013Mar 23, 2012Yes
00Apr 17, 2013Mar 23, 2012Yes

Well logs

1 log loaded from the RRC's log index, the latest received Dec 15, 2014. 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 describedFiles Intervalft, as filedDatereceivedSizeMB
NEUTRON/DENSITY POROSITYSpans Delaware, Bone Spring, WolfcampTIFF200 to 11,607Dec 15, 2014run Dec 24, 201115.8

"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.

Find logs withinmiles of this well:List →Map →

Search the well logs loaded into Petrora →

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.

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/38932830, documented in the API reference.