WELL · 42-461-36930 · DISTRICT 7

Ross 40 #6

Y

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

Ross 40 #6 (API 42-461-36930) is a well in Upton County operated by Diamondback E&P LLC, completed February 29, 2012 and listed as shut in on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued September 13, 2010, permitted to 11,100 ft.

It was permitted by Apache Corporation and has since transferred to Diamondback E&P LLC on the wellbore schedule.

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

Its lease has reported 329K barrels of oil and 492K mcf of gas since October 2008, last reporting in July 2026. The lease carries 8 wells, so these are lease totals, not this well alone.

Operator of record

Diamondback E&P LLC

Permitted by Apache Corporation; 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 reportsDE IV Operating, LLCthrough Dec 2024
Latest permitMariner Energy, Inc.Sep 13, 2010

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

11,100
total depth, ft
2
permits on file
Sep 13, 2010
last permit issued
Feb 29, 2012
completed
329K
cumulative oil, bbl
492K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Oct 2008 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Feb 29, 2012
Shut in
—
Plugged
—

Operator's P-5 on the schedule: 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; they carry 8 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Ross 40 O-9-16760Spraberry (Trend Area)Diamondback E&P LLC8329K492KOct 2008 – Jul 2026

Oil, barrels lease total

Last 12 months 0 · prior 12 1,037(-100%)

05001K202420252026

Gas, mcf lease total

Last 12 months 0 · prior 12 33(-100%)

05001K202420252026

Chain of custody

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

  1. 1Mariner Energy, Inc.Nov 2008 → Nov 2010
  2. 2Apache CorporationDec 2010 → Jan 2023
  3. 3DE IV Operating, LLCFeb 2023 → Dec 2024

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
700795-98DrillApache CorporationAug 20, 2011Sep 13, 2010Dec 9, 201111,100
700795-99DrillMariner Energy, Inc.Aug 17, 2010Sep 13, 2010Dec 9, 201111,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-9-16760————

Formation tops

As filed on W-2/G-1. Subsea from 2,804 ft elevation.Download CSV →

FormationMD ftSubsea
Spraberry7,689-4,885
Wolfcamp9,198-6,394
Strawn10,785-7,981

Perforations

Perforated and open-hole intervals.

FromToType
7,69610,780Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37544617.5450 S
8.6254,698111,050 S
5.510,8847.8751,100 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
00Apr 26, 2013May 22, 2012Yes

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/46136930, documented in the API reference.