TEXAS · WELLS · PANOLA COUNTY · MARKEY GAS UNIT LEASE · API 42-365-37455 · DISTRICT 06

Markey Gas Unit #16

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

Markey Gas Unit #16 (API 42-365-37455) is a well in Panola County operated by Tgnr East Texas LLC, completed November 18, 2009 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued June 18, 2009, permitted to 10,068 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 Rodessa, James Lime, Pettit, Travis Peak.

Its lease has reported 13.6K barrels of oil and 883K mcf of gas since November 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 LPJun 18, 2009

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

10,068
total depth, ft
1
permits on file
Jun 18, 2009
last permit issued
Nov 18, 2009
completed
13.6K
cumulative oil, bbl
883K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Nov 2009 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Nov 18, 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-6-254650Carthage (Cotton Valley)TGNR East Texas LLC113.6K883KNov 2009 – Apr 2026

Gas, mcf lease total

Last 12 months 17,831 · prior 12 21,435(-17%)

01K2K3K202420252026

Chain of custody

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

  1. 1Anadarko E&P Company LPNov 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
681956-99DrillAnadarko E&P Company LPJun 9, 2009Jun 18, 2009Sep 4, 200912,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Nov 18, 2009Markey Gas Unit G-6-254650Carthage (Cotton Valley)TGNR East Texas LLCProducing10,068

Formation tops

As filed on W-2/G-1. Subsea from 324 ft elevation.Download CSV →

FormationMD ftSubsea
Rodessa5,475-5,151
James Lime5,975-5,651
Pettit6,211-5,887
Travis Peak6,558-6,234
Cotton Valley8,504-8,180
Vaughn8,945-8,621

Perforations

Perforated and open-hole intervals.

FromToType
8,7208,931Perforated
9,2749,510Perforated
9,6549,852Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,06012.25407 S
5.510,0687.8751,592 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
00Feb 25, 2010Jan 19, 2010Yes
00Feb 19, 2010——

Well logs

1 log loaded from the RRC's log index, the latest received Mar 9, 2010. 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 Rodessa, James Lime, Pettit, Travis Peak, Cotton Valley, VaughnTIFF1,060 to 10,078Mar 9, 2010run Sep 12, 20094.97

"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/36537455, documented in the API reference.