WELL · 42-317-35981 · DISTRICT 8

Semillon #2X

Shut in

Martin County · Spraberry (Trend Area) field · Shut IN  · Vertical

Semillon #2X (API 42-317-35981) is a well in Martin County operated by Diamondback E&P LLC, completed May 27, 2012 and listed as shut in on the RRC schedule, shut in June 1, 2024.

The RRC has issued 2 drilling permits in 2010, permitted to 11,375 ft.

It was permitted by Opal Resources Operating CO.,LLC and has since transferred to Diamondback E&P LLC on the wellbore schedule.

Completion filings report 3 formation tops, including Spraberry, Dean, Wolfcamp.

Its lease has reported 66.6K barrels of oil and 72.3K mcf of gas since June 2010, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.

Operator of record

Diamondback E&P LLC

Permitted by Opal Resources Operating Co.,llc; the EWA schedule now lists a different operator.

Based in
Midland, TX
P-5 status
Active – Extension (X)
P-5 last filed
May 4, 2026
Permits on file
5,237
Phone
(432) 221-7400

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedulenone
Production reportsDiamondback E&P LLCthrough May 2024
Latest permitOpal Resources Operating Co.,llcOct 27, 2010
11,375
total depth, ft
2
permits on file
Oct 27, 2010
last permit issued
May 27, 2012
completed
66.6K
cumulative oil, bbl
72.3K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jun 2010 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
May 27, 2012
Shut in
Jun 1, 2024
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; they carry 2 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Semillon O-10-40266Spraberry (Trend Area)Diamondback E&P LLC266.6K72.3KJun 2010 – Jul 2026

Oil, barrels lease total

Last 12 months 0 · prior 12 1(-100%)

05001K202420252026

Gas, mcf lease total

Last 12 months 0 · prior 12 0

0204060202420252026

Chain of custody

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

  1. 1Opal Resources Operating Co.,llcJul 2010 → Apr 2011
  2. 2W&T Offshore, Inc.May 2011 → Dec 2014
  3. 3Ajax Resources, LLCJan 2015 → Oct 2018
  4. 4Diamondback E&P LLCNov 2018 → May 2024

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
704010-99RecompletionOpal Resources Operating Co.,llcOct 19, 2010Oct 27, 2010Apr 29, 201011,375
695000-99DrillOpal Resources Operating Co.,llcApr 26, 2010Apr 26, 2010Apr 26, 201012,000

Completions

CompletedLeaseFieldOperatorStatusDepth
May 27, 2012Semillon O-10-40266Spraberry (Trend Area)Diamondback E&P LLCShut IN · shut in Jun 1, 202411,375

Formation tops

As filed on W-2/G-1. Subsea from 2,892 ft elevation.Download CSV →

FormationMD ftSubsea
Spraberry8,168-5,276
SpraberryLOWER SPRABERRY8,709-5,817
SpraberrySPRABERRY LOWER8,709-5,817
Dean9,416-6,524
WolfcampLOWER WOLFCAMP10,572-7,680
WolfcampWOLFCAMP LOWER10,572-7,680

Perforations

Perforated and open-hole intervals.

FromToType
7,28011,092Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.6252,03012.25900 S
5.511,3757.875930 S
5.5—7.8751,800 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. About these reports →

SuffixFiledW-2 / G-1 dateLogs referenced
00Jan 25, 2014May 22, 2013—
00Nov 10, 2010Aug 20, 2010Yes
00Oct 21, 2010——

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.

Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their 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/31735981, documented in the API reference.