WELL · 42-461-37056 · DISTRICT 7

Chevron 35 #8

Plugged

Upton County · Spraberry (Trend Area) field  · Vertical

Chevron 35 #8 (API 42-461-37056) is a plugged well in Upton County, plugged July 22, 2022, last operated by Cog Operating LLC.

The RRC has issued one drilling permit, issued October 26, 2010, permitted to 11,000 ft.

Completion filings report 4 formation tops, including Spraberry, Dean, Wolfcamp, L. Wolfcamp.

Its lease has reported 366K barrels of oil and 842K mcf of gas since July 2009, last reporting in October 2025. The lease carries 7 wells, so these are lease totals, not this well alone.

Operator of record

COG Operating LLC

Based in
Midland, TX
P-5 status
Active – Extension (X)
P-5 last filed
Jun 2, 2026
Permits on file
4,568
Phone
(432) 683-7443

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleCOG Operating LLC
Production reportsCOG Operating LLCthrough Mar 2025
Latest permitCOG Operating LLCOct 26, 2010
11,000
total depth, ft
1
permits on file
Oct 26, 2010
last permit issued
Feb 13, 2011
completed
366K
cumulative oil, bbl
842K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jul 2009 THROUGH Oct 2025

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Feb 13, 2011
Shut in
—
Plugged
Jul 22, 2022

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

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Chevron "35" O-9-16975Spraberry (Trend Area)COG Operating LLC7366K842KJul 2009 – Oct 2025

Oil, barrels lease total

Last 12 months 0 · prior 12 2,341(-100%)

05001K202420252026

Gas, mcf lease total

Last 12 months 0 · prior 12 6,536(-100%)

01K2K3K202420252026

Chain of custody

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

  1. 1Terrace Petroleum CorporationJul 2009 → Dec 2009
  2. 2COG Operating LLCJan 2010 → Mar 2025

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
704213-99DrillCOG Operating LLCOct 22, 2010Oct 26, 2010Nov 7, 201011,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-9-16975————

Formation tops

As filed on W-2/G-1. Subsea from 2,831 ft elevation.Download CSV →

FormationMD ftSubsea
Spraberry7,750-4,919
Dean9,050-6,219
Wolfcamp9,150-6,319
L. Wolfcamp9,500-6,669

Perforations

Perforated and open-hole intervals.

FromToType
7,97010,360Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.62583312.25430 S
5.510,5227.875850 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
00Feb 7, 2012Mar 29, 2011Yes

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/46137056, documented in the API reference.