WELL · 42-317-35075 · DISTRICT 8

Phillips 31 #2

Y

Martin County · Spraberry (Trend Area) field · Producing  · Vertical

Phillips 31 #2 (API 42-317-35075) is a well in Martin County operated by Diamondback E&P LLC, completed July 2, 2008 and listed as producing on the RRC schedule.

The RRC has issued 2 drilling permits between 2007 and 2017, permitted to 12,000 ft.

It was permitted by Endeavor Energy Resources L.P. and has since transferred to Diamondback E&P LLC on the wellbore schedule.

Completion filings report 7 formation tops, including Clear Fork, Spraberry, Dean, Wolfcamp.

Its lease has reported 231K barrels of oil and 436K mcf of gas since January 2008, last reporting in July 2026. The lease carries 4 wells, so these are lease totals, not this well alone.

Operator of record

Diamondback E&P LLC

Permitted by Endeavor Energy Resources L.P.; the EWA schedule now lists a different operator.

Midland, TX · P-5 Y, filed Mar 4, 2026 · 5,237 permits on file · (855) 247-5920

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleDiamondback E&P LLC
Production reportsDiamondback E&P LLCthrough Jan 2026
Latest permitEndeavor Energy Resources L.P.Nov 13, 2017

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

12,000
total depth, ft
2
permits on file
Nov 13, 2017
last permit issued
Jul 2, 2008
completed
231K
cumulative oil, bbl
436K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 2008 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jul 2, 2008
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

32.308380, -101.799709

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Martin County.

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 4 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Phillips "31" O-10-38583Spraberry (Trend Area)Diamondback E&P LLC4231K436KJan 2008 – Jul 2026

Oil, barrels lease total

Last 12 months 1,486 · prior 12 3,789(-61%)

05001K202420252026

Gas, mcf lease total

Last 12 months 0 · prior 12 60(-100%)

02040202420252026

Chain of custody

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

  1. 1Endeavor Energy Resources L.P.Jan 2008 → Dec 2024
  2. 2Diamondback E&P LLCJan 2025 → Jan 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
833000-99RecompletionEndeavor Energy Resources L.P.Nov 8, 2017Nov 13, 2017Jun 20, 200811,032
647856-99DrillEndeavor Energy Resources L.P.Oct 16, 2007Oct 18, 2007Mar 23, 200812,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-38583————

Formation tops

As filed on W-2/G-1. Subsea from 2,623 ft elevation.Download CSV →

FormationMD ftSubsea
Clear ForkCLEARFORK5,575-2,952
Clear ForkCLEARFORK LIME5,575-2,952
Spraberry7,015-4,392
Dean8,325-5,702
WolfcampWOLFCAMP LIME8,650-6,027
StrawnSTRAWN LIME10,003-7,380
StrawnSTRAWN LIME10,050-7,427
MississippianMISS10,300-7,677
MississippianLOWER MISS LIME10,625-8,002
Woodford10,900-8,277

Perforations

Perforated and open-hole intervals.

FromToType
7,02110,868Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
12.7531217.5350 S
8.6254,41211700 S
4.511,0327.8751,650 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
00Dec 20, 2017Dec 19, 2017—
00Dec 2, 2008Aug 1, 2008Yes
00Nov 13, 2008——

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.

Nearby wells and their tops

NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM

Draw a cross-section

This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

Sand Storm Unit 1 087342-317-44006

0.2 KM · XTO Energy Inc. · Section with this well →

Yates4362,186
Queen6661,956
Grayburg8971,725
San Andres9621,660
Santa Rosa1,0081,614
Clear Fork2,956-334
Spraberry4,214-1,592
Dean8,342-5,720

11 TOPS · FIRST 8

Sand Storm Unit 1&2 Alloc42-317-44013

0.2 KM · XTO Energy Inc. · Section with this well →

Santa Rosa9951,627
Rustler1,5281,094
Yates2,211411
Queen3,300-678
Grayburg3,543-921
San Andres3,607-985
Spraberry6,860-4,238
Wolfcamp—

11 TOPS · FIRST 8

Sand Storm Unit 2 087542-317-43931

0.2 KM · XTO Energy Inc. · Section with this well →

Santa Rosa9941,628
Rustler1,5401,082
Yates2,197425
Seven Rivers2,54775
Queen3,298-676
Grayburg3,527-905
San Andres3,588-966
Glorieta4,751-2,129

15 TOPS · FIRST 8

Sand Storm Unit 2 087542-317-43932

0.2 KM · XTO Energy Inc. · Section with this well →

Santa Rosa9941,628
Rustler1,5351,087
Yates2,197425
Seven Rivers2,55270
Queen3,298-676
Grayburg3,527-905
San Andres3,590-968
Glorieta4,747-2,125

13 TOPS · FIRST 8

Sand Storm Unit 2 080642-317-43933

0.2 KM · XTO Energy Inc. · Section with this well →

Yates4372,185
Queen6641,958
Grayburg8921,730
San Andres9551,667
Santa Rosa1,0071,615
Clear Fork2,949-327
Dean5,689-3,067
Wolfcamp5,887-3,265

11 TOPS · FIRST 8

Sand Storm Unit 1 080442-317-44008

0.2 KM · XTO Energy Inc. · Section with this well →

Yates4312,198
Queen6701,959
Grayburg9041,725
San Andres9711,658
Santa Rosa1,0151,614
Rustler1,1041,525
Clear Fork2,961-332
Spraberry4,222-1,593

12 TOPS · FIRST 8

Sand Storm Unit 1 087342-317-44007

0.2 KM · XTO Energy Inc. · Section with this well →

Yates4312,198
Queen6701,959
Grayburg9031,726
San Andres9701,659
Santa Rosa1,0151,614
Spraberry4,215-1,586
Dean5,693-3,064
Wolfcamp8,550-5,921

11 TOPS · FIRST 8

Sand Storm Unit 1 082342-317-44009

0.3 KM · XTO Energy Inc. · Section with this well →

Yates4312,199
Queen6711,959
Grayburg9061,724
San Andres9721,658
Santa Rosa1,0161,614
Rustler1,1041,526
Clear Fork2,963-333
Spraberry4,220-1,590

12 TOPS · FIRST 8

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/31735075, documented in the API reference.