TEXAS · WELLS · PANOLA COUNTY · MANGHAM UNIT LEASE · API 42-365-35174 · DISTRICT 06

Mangham Unit #21

Y

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

Fields on the latest permit · any of 13
Carthage (Cotton Valley) · Carthage (Travis Peak-Allison) · Carthage (Travis Peak-Blue) · Carthage (Travis Peak, Lower) · Carthage (Travis Peak-Ross-2) · Carthage (Travis Peak 6296) · Carthage (Travis Peak-White) · Carthage (Travis Peak 6400) · Carthage (Travis Peak 6450) · Carthage (Travis Peak 6820) · Carthage (Travis Peak 7960) · Carthage (Travis Peak 7400) · Carthage (6900)
Not one formation; the well must be completed in one of them, and no target formation is stated.

Mangham Unit #21 (API 42-365-35174) is a well in Panola County operated by Diversified Production LLC, completed November 22, 2008 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued December 16, 2003, permitted to 9,471 ft.

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

Completion filings report 3 formation tops, including Pettit, Travis Peak, Cotton Valley.

Its lease has reported 8.09K barrels of oil and 968K mcf of gas since July 2004, last reporting volume in April 2026.

Operator of record

Diversified Production LLC

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

Based in
Keithville, LA
P-5 status
Active – Extension (X)
P-5 last filed
Mar 25, 2026
Permits on file
11
Phone
(318) 751-3917

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleDiversified Production LLC
Production reportsDiversified Production LLCthrough Apr 2026
Latest permitDevon Energy Production Co, L.P.Dec 16, 2003

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

9,471
total depth, ft
1
permits on file
Dec 16, 2003
last permit issued
Nov 22, 2008
completed
8.09K
cumulative oil, bbl
968K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jul 2004 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Nov 22, 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.

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
Mangham Unit G-6-204009Carthage (Cotton Valley)Diversified Production LLC18.09K968KJul 2004 – Apr 2026

Gas, mcf lease total

Last 12 months 13,701 · prior 12 12,632(+8%)

05001K1.5K202420252026

Chain of custody

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

  1. 1Devon Energy Production Co, L.P.Jul 2004 → Jun 2016
  2. 2Sheridan Production Company, LLCJul 2016 → Dec 2019
  3. 3Sheridan Production Co III, LLCJan 2020 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
538543-99DrillDevon Energy Production Co, L.P.Nov 12, 2003Dec 16, 2003Jun 28, 200410,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Nov 22, 2008Mangham Unit G-6-204009Carthage (Cotton Valley)Diversified Production LLCProducing9,471

Formation tops

As filed on W-2/G-1. Subsea from 261 ft elevation.Download CSV →

FormationMD ftSubsea
Pettit5,810-5,549
Travis Peak6,215-5,954
Cotton Valley8,120-7,859

Perforations

Perforated and open-hole intervals.

FromToType
8,3988,404Perforated
8,5438,547Perforated
8,7729,160Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,01512.25360 S
5.59,4717.8752,370 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
00Sep 29, 2009Jul 22, 2009—
00Jan 14, 2005Sep 2, 2004Yes
00Nov 4, 2004——

Well logs

1 log loaded from the RRC's log index, the latest received Jan 29, 2008. 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 PorositySIMULTANEOUS TRIPLE INDUCTION MICRORESISTIVITY DENSITY NEUTRON LOGSpans Cotton ValleyTIFF8,448 to 9,468Jan 29, 2008run Jul 12, 2004—

"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/36535174, documented in the API reference.