Petrora

TEXAS · WELLS · UPTON COUNTY · API 42-461-33976 · DISTRICT 6E

Lilly #1

Y

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

Lilly #1 (API 42-461-33976) is a well in Upton County operated by Cog Operating LLC, completed September 1, 2012 and listed as producing on the RRC schedule.

The RRC has issued 2 drilling permits (amended once) between 1999 and 2013, permitted to 9,375 ft.

It was permitted by Summit Petroleum LLC and has since transferred to Cog Operating LLC on the wellbore schedule.

Completion filings report 6 formation tops, including Clear Fork, Spraberry, Sprberry, Leonard.

Its 4 leases have reported 390K barrels of oil and 1.9M mcf of gas since July 1999, last reporting in July 2026. The leases carry 6 wells, so these are lease totals, not this well alone.

Operator of record

COG Operating LLC

Permitted by Summit Petroleum LLC; 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
Watch this operatorWatch Upton County

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleEOG Resources Inc.
Production reportsCOG Operating LLCthrough Apr 2026
Latest permitSummit Petroleum LLCFeb 27, 2013

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

9,375
total depth, ft
3
permits on file
Feb 27, 2013
last permit issued
Sep 1, 2012
completed
390K
cumulative oil, bbl
1.9M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jul 1999 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Sep 1, 2012
Shut in
—
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 4 leases this well is completed on; they carry 6 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Lilly G-9-217441Buck Trap (Wolfcamp)COG Operating LLC10250KMar 2006 – Jul 2026
Lilly O-9-16892Spraberry (Trend Area)COG Operating LLC354.3K296KDec 2008 – Jul 2026
Cowden "18" O-9-14963Buck Trap (Wolfcamp)EOG Resources, Inc.1207K1.24MFeb 2000 – Aug 2006
Cowden "18" O-9-14903Piglet (Wolfcamp)EOG Resources, Inc.1129K107KJul 1999 – Jul 2000

Oil, barrels lease total

Last 12 months 156 · prior 12 157(-1%)

0102030202420252026

Gas, mcf lease total

Last 12 months 470 · prior 12 240(+96%)

0204060202420252026

Chain of custody

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

  1. 1Enron Oil & Gas CompanyJul 1999 → Sep 1999
  2. 2EOG Resources, Inc.Oct 1999 → Feb 2012
  3. 3Summit Petroleum LLCMar 2012 → Feb 2017
  4. 4COG Operating LLCMar 2017 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
754268-99RecompletionSummit Petroleum LLCJan 8, 2013Feb 27, 2013Jun 7, 201210,500
484881-98DrillEnron Oil & Gas CompanyAug 12, 1999Jun 3, 1999—10,500
484881-99DrillEnron Oil & Gas CompanyMay 28, 1999Jun 3, 1999Jun 9, 199910,500

Completions

CompletedLeaseFieldOperatorStatusDepth
Sep 1, 2012Lilly O-9-16892Spraberry (Trend Area)COG Operating LLCProducing9,375
Aug 30, 2010Lilly G-9-217441Buck Trap (Wolfcamp)COG Operating LLCPartial Plug · shut in Sep 1, 20129,375
Jul 27, 1999Cowden 18 O-9-14903Piglet (Wolfcamp)EOG Resources Inc.Not on Schedule—
Jul 27, 1999Cowden 18 O-9-14963Buck Trap (Wolfcamp)EOG Resources Inc.Not on Schedule—

Formation tops

As filed on W-2/G-1. Subsea from 2,665 ft elevation.Download CSV →

FormationMD ftSubsea
Clear ForkCLEARFORK6,510-3,845
Spraberry7,049-4,384
Sprberry7,049-4,384
Leonard7,110-4,445
Dean8,174-5,509
Wolfcamp8,856-6,191
Wolfcamp8,865-6,200

Perforations

Perforated and open-hole intervals.

FromToType
6,5107,960Perforated
9,1889,202Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
11.7544214.75290 S
8.6254,460111,250 S
78,7407.875348 S
4.59,3756.2570 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
00Nov 21, 2013Jun 27, 2013—
00May 4, 2011Sep 20, 2010—
00Jan 4, 2007Mar 10, 2006—
00Nov 10, 2006Mar 10, 2006—
00Jul 28, 2006——
00Mar 14, 2000Jul 29, 1999Yes
00Sep 22, 1999Jul 29, 1999Yes
00Aug 17, 1999——

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.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

0
bbl, last 12 reported months
304K
bbl, all reported
Oct 2014
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000101758H-1 InjectionCanceled Sep 16, 20145,0002,5008,700–9,375

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 0 · prior 12 0

0120132014

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/46133976, documented in the API reference.