TEXAS · WELLS · PANOLA COUNTY · MARKEY GAS UNIT LEASE · API 42-365-37234 · DISTRICT 06

Markey Gas Unit #11

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Panola County · Carthage (Cotton Valley) field · Producing  · Vertical

Markey Gas Unit #11 (API 42-365-37234) is a well in Panola County operated by Tgnr East Texas LLC, completed January 10, 2009 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued October 10, 2008, permitted to 9,985 ft.

It was permitted by Anadarko E&P Company LP and has since transferred to Tgnr East Texas LLC on the wellbore schedule.

Completion filings report 6 formation tops, including Austin Chalk, James Lime, Pettit, Travis Peak.

Its lease has reported 6.81K barrels of oil and 751K mcf of gas since January 2009, last reporting volume in April 2026.

Operator of record

TGNR East Texas LLC

Permitted by Anadarko E&P Company LP; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active (A)
P-5 last filed
Feb 4, 2026
Permits on file
41
Phone
(346) 308-2250

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleTGNR East Texas LLC
Production reportsTGNR East Texas LLCthrough Apr 2026
Latest permitAnadarko E&P Company LPOct 10, 2008

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

9,985
total depth, ft
1
permits on file
Oct 10, 2008
last permit issued
Jan 10, 2009
completed
6.81K
cumulative oil, bbl
751K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 2009 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jan 10, 2009
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 lease this well is completed on; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Markey Gas Unit G-6-245745Carthage (Cotton Valley)TGNR East Texas LLC16.81K751KJan 2009 – Apr 2026

Gas, mcf lease total

Last 12 months 6,345 · prior 12 3,781(+68%)

01K2K202420252026

Chain of custody

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

  1. 1Anadarko E&P Company LPJan 2009 → Dec 2012
  2. 2Anadarko E&P Onshore LLCJan 2013 → Nov 2016
  3. 3Cci East Texas Upstream LLCDec 2016 → Jan 2021
  4. 4TGNR East Texas LLCFeb 2021 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
669939-99DrillAnadarko E&P Company LPAug 27, 2008Oct 10, 2008Dec 5, 200812,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Jan 10, 2009Markey Gas Unit G-6-245745Carthage (Cotton Valley)TGNR East Texas LLCProducing9,985

Formation tops

As filed on W-2/G-1. Subsea from 283 ft elevation.Download CSV →

FormationMD ftSubsea
Austin Chalk2,622-2,339
James Lime5,892-5,609
Pettit6,180-5,897
Travis Peak6,522-6,239
Cotton Valley8,455-8,172
Justiss9,239-8,956

Perforations

Perforated and open-hole intervals.

FromToType
8,8389,205Perforated
9,4429,834Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,03812.25399 S
5.59,9877.8751,507 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Mar 31, 2009Feb 26, 2009Yes
00Mar 20, 2009——

Well logs

1 log loaded from the RRC's log index, the latest received Apr 17, 2009. Density, Neutron, Resistivity. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.

Open the RRC's log search for this well ↗
Logas describedFiles Intervalft, as filedDatereceivedSizeMB
COMBINATION: RESISTIVITY/NEUTRON/DENSITY POROSITYSpans Austin Chalk, James Lime, Pettit, Travis Peak, Cotton Valley, JustissTIFF1,031 to 10,006Apr 17, 2009run Dec 16, 20085.01

"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.

Find logs withinmiles of this well:List →Map →

Search the well logs loaded into Petrora →

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.

The logs loaded for this well are under Well logs, with the RRC's log search for it.

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/36537234, documented in the API reference.