TEXAS · WELLS · ANGELINA COUNTY · API 42-005-30329 · DISTRICT 06

Preston Heirs Unit #8

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Angelina County · Raintree (Travis Peak Cons.) field · SWR-10-Well  · Vertical

Preston Heirs Unit #8 (API 42-005-30329) is a well in Angelina County operated by Atlas Operating LLC, completed February 10, 2009 and listed as swr-10-well on the RRC schedule.

The RRC has issued 2 drilling permits (amended once) between 2007 and 2008, permitted to 11,930 ft.

It was permitted by Encana Oil & Gas(USA) Inc. and has since transferred to Atlas Operating LLC on the wellbore schedule.

Completion filings report 3 formation tops, including James Lime, Pettit, Travis Peak.

Its 2 leases have reported 1.11K barrels of oil and 2.53M mcf of gas since February 2008, last reporting volume in March 2026. The leases carry 2 wells, so these are lease totals, not this well alone.

Operator of record

Atlas Operating LLC

Permitted by Encana Oil & Gas(usa) Inc.; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active – Hearing (H)
P-5 last filed
Mar 9, 2026
Permits on file
78
Phone
(281) 893-9400

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleAtlas Operating LLC
Production reportsAtlas Operating LLCthrough Mar 2026
Latest permitEncana Oil & Gas(usa) Inc.Dec 8, 2008

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

11,930
total depth, ft
3
permits on file
Dec 8, 2008
last permit issued
Feb 10, 2009
completed
1.11K
cumulative oil, bbl
2.53M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Feb 2008 THROUGH Mar 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Feb 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 2 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Preston Heirs Unit G-6-249598Rocky Springs (U.G.R.)Atlas Operating LLC19862.44MJan 2009 – Mar 2026
Preston Heirs Unit G-6-236760Raintree (Travis Peak Cons.)Atlas Operating LLC112895.9KFeb 2008 – Jan 2009

Gas, mcf lease total

Last 12 months 6,247 · prior 12 7,697(-19%)

05001K1.5K202420252026

Chain of custody

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

  1. 1Encana Oil & Gas(usa) Inc.Feb 2008 → Dec 2010
  2. 2SND Operating, L.L.C.Jan 2011 → Sep 2017
  3. 3Weatherly Oil & Gas, LLCOct 2017 → Mar 2019
  4. 4BRG Lone Star Ltd.Apr 2019 → Feb 2026
  5. 5Atlas Operating LLCMar 2026 → Mar 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
675846-99RecompletionEncana Oil & Gas(usa) Inc.Dec 4, 2008Dec 8, 2008Dec 16, 200813,000
650113-98DrillEncana Oil & Gas(usa) Inc.Apr 9, 2008Dec 12, 2007Jan 6, 200813,000
650113-99DrillEncana Oil & Gas(usa) Inc.Nov 21, 2007Dec 12, 2007Jan 6, 200813,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Feb 10, 2009Preston Heirs Unit G-6-236760Raintree (Travis Peak Cons.)Atlas Operating LLCSWR-10-Well · shut in Dec 1, 200811,930
Feb 7, 2008Preston Heirs Unit G-6-249598Rocky Springs (U.G.R.)Atlas Operating LLCProducing11,930

Formation tops

As filed on W-2/G-1. Subsea from 236 ft elevation.Download CSV →

FormationMD ftSubsea
James LimeJAMES LIMESTONE9,330-9,094
Pettit9,720-9,484
Travis Peak10,580-10,344

Perforations

Perforated and open-hole intervals.

FromToType
8,0608,088Perforated
9,98810,004Perforated
10,08410,090Perforated
10,54410,546Perforated
10,58010,582Perforated
10,58010,883Perforated
10,67910,682Perforated
10,77410,776Perforated
10,82410,826Perforated
10,87810,880Perforated
10,91510,918Perforated
11,20211,337Perforated
11,52111,775Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6253,02012.251,050 S
5.511,9307.8751,230 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 29, 2010Nov 6, 2009—
00Sep 15, 2009Apr 17, 2009Yes
00Sep 1, 2009Apr 17, 2009—
00Jul 27, 2009——
00Jul 23, 2008Apr 22, 2008Yes
00Jul 16, 2008——

Well logs

1 log loaded from the RRC's log index, the latest received Feb 2, 2011. 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 James Lime, Pettit, Travis PeakTIFF3,014 to 11,848Feb 2, 2011run Jan 23, 20089.05

"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/00530329, documented in the API reference.