TEXAS · WELLS · TARRANT COUNTY · TANNAHILL, CLIFTON LEASE · API 42-439-32860 · DISTRICT 7C

Tannahill Clifton #6H

On schedule

Tarrant County · Newark East (Barnett Shale) field · Producing  · Horizontal

Tannahill Clifton #6H (API 42-439-32860) is a horizontal well in Tarrant County operated by Bkv Barnett LLC, completed March 18, 2008 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued November 26, 2007, permitted to 6,626 ft.

It was permitted by Devon Energy Production CO, L.P. and has since transferred to Bkv Barnett LLC on the wellbore schedule.

Completion filings report 2 formation tops, including Marble Falls, Barnett.

Its lease has reported 2.31M mcf of gas since March 2008, last reporting volume in August 2026.

Operator of record

BKV Barnett LLC

Permitted by Devon Energy Production Co, L.P.; the EWA schedule now lists a different operator.

Based in
Fort Worth, TX
P-5 status
Active (A)
P-5 last filed
Mar 11, 2026
Permits on file
143
Phone
(940) 394-2000

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleBKV Barnett LLC
Production reportsBKV Barnett, LLCthrough Aug 2026
Latest permitDevon Energy Production Co, L.P.Nov 26, 2007

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

6,626
total depth, ft
1
permits on file
Nov 26, 2007
last permit issued
Mar 18, 2008
completed
0
cumulative oil, bbl
2.31M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · MAR 2008 THROUGH AUG 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Mar 18, 2008
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.

Wells nearby

Every well with a location on file around this well, in any state, nearest first.

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Texas locations come from drilling permits, so most older Texas wells have none and are not listed.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH AUG 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
Tannahill, Clifton G-13-239215Newark, East (Barnett Shale)BKV Barnett, LLC102.31MMar 2008 – Aug 2026

Gas, mcf lease total

Last 12 months 60,427 · prior 12 68,381(-12%)

05K10K202420252026

Wells named Tannahill Clifton

BKV Barnett LLC's other wells filed under this lease name in Tarrant County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.

Loading the lease's wells

Chain of custody

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

  1. 1Devon Energy Production Co, L.P.Mar 2008 → Sep 2020
  2. 2BKV Barnett, LLCOct 2020 → Aug 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
649843-99DrillDevon Energy Production Co, L.P.Nov 16, 2007Nov 26, 2007Dec 25, 20079,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Mar 18, 2008Tannahill Clifton G-13-239215Newark East (Barnett Shale)BKV Barnett LLCProducing6,626

Formation tops

As filed on W-2/G-1. Subsea from 862 ft elevation.Download CSV →

FormationMD ftSubsea
Marble Falls6,448-5,586
BarnettUPPER BARNETT SHALE6,488-5,626
BarnettLOWER BARNETT SHALE6,542-5,680

Perforations

Perforated and open-hole intervals.

FromToType
7,0507,253Perforated
7,4507,653Perforated
7,8508,053Perforated
8,2508,453Perforated
8,6508,853Perforated
9,0509,253Perforated
9,4509,653Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.62587612.25310 S
5.59,8767.8751,195 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
00Oct 8, 2008May 12, 2008Yes
00Sep 26, 2008——

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 filed since 2004 open from the RRC's log search for this well; none are loaded here for it.

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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/43932860, documented in the API reference.