WELL · 42-135-41117 · DISTRICT 8

Ratliff C #1809

Y

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

Ratliff C #1809 (API 42-135-41117) is a well in Ector County operated by Cog Operating LLC, completed June 29, 2012 and listed as shut in on the RRC schedule.

The RRC has issued one drilling permit, issued May 16, 2011, permitted to 13,000 ft.

It was permitted by Reliance Energy, Inc. and has since transferred to Cog Operating LLC on the wellbore schedule.

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

Its lease has reported 782K barrels of oil and 2.17M mcf of gas since March 2010, last reporting in July 2026. The lease carries 9 wells, so these are lease totals, not this well alone.

Operator of record

COG Operating LLC

Permitted by Reliance Energy, Inc.; the EWA schedule now lists a different operator.

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 Apr 2026
Latest permitReliance Energy, Inc.May 16, 2011

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

13,000
total depth, ft
1
permits on file
May 16, 2011
last permit issued
Jun 29, 2012
completed
782K
cumulative oil, bbl
2.17M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Mar 2010 THROUGH Jul 2026

Regulatory status · RRC wellbore file

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

Operator's P-5 on the schedule: Active – Extension (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 9 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Ratliff C O-10-40137Spraberry (Trend Area)COG Operating LLC9782K2.17MMar 2010 – Jul 2026

Oil, barrels lease total

Last 12 months 8,855 · prior 12 10,144(-13%)

01K2K202420252026

Gas, mcf lease total

Last 12 months 51,557 · prior 12 38,444(+34%)

05K10K15K202420252026

Chain of custody

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

  1. 1Reliance Energy, Inc.Mar 2010 → Sep 2016
  2. 2COG Operating LLCOct 2016 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
716231-99DrillReliance Energy, Inc.May 12, 2011May 16, 2011May 13, 201213,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-40137————

Formation tops

As filed on W-2/G-1. Subsea from 2,953 ft elevation.Download CSV →

FormationMD ftSubsea
Spraberry8,025-5,072
Strawn10,231-7,278
Atoka10,498-7,545

Perforations

Perforated and open-hole intervals.

FromToType
8,81410,122Perforated
10,23810,418Perforated
10,51811,060Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37531417.5350 S
8.6254,80011600 S
5.511,1777.8751,100 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
00Jan 27, 2014Mar 8, 2013Yes

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/13541117, documented in the API reference.