WELL · 42-439-31826 · DISTRICT 9
Lobf Unit #1
Tarrant County · Newark East (Barnett Shale) field · Horizontal
Lobf Unit #1 (API 42-439-31826) is a plugged horizontal well in Tarrant County, plugged January 17, 2012, last operated by Legend Natural Gas IV LP.
The RRC has issued one drilling permit (amended twice), issued November 14, 2006, permitted to 8,500 ft.
It was permitted by Ops Group Limited and has since transferred to Legend Natural Gas IV LP on the wellbore schedule.
Completion filings report 3 formation tops, including Atoka, Marble Falls, Barnett.
Operator of record
Permitted by Ops Group Limited; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Dec 4, 2015 · 136 permits on file · (281) 644-5900
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Legend Natural Gas IV LP |
| Production reports | Range Production Companythrough Jan 2011 |
| Latest permit | Ops Group LimitedNov 14, 2006 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,500
- total depth, ft
- 3
- permits on file
- Nov 14, 2006
- last permit issued
- Jul 6, 2007
- completed
- 0
- cumulative oil, bbl
- 506K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2007 THROUGH Jan 2012
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 6, 2007
- Shut in
- —
- Plugged
- Jan 17, 2012
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 →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Lobf Unit G-13-239909 | Newark, East (Barnett Shale) | Legend Natural Gas IV, LP | 1 | 0 | 506K | Jul 2007 – Jan 2012 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Ops Group LimitedJul 2007 → Mar 2008
- 2Range Production CompanyApr 2008 → Jan 2011
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 628915-97 | Drill | Ops Group Limited | Oct 15, 2007 | Nov 14, 2006 | May 9, 2007 | 8,500 |
| 628915-98 | Drill | Ops Group Limited | Jun 22, 2007 | Nov 14, 2006 | — | 8,500 |
| 628915-99 | Drill | Star of Texas Energy Srvs, Inc. | Nov 13, 2006 | Nov 14, 2006 | — | 8,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-13-239909 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 469 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Atoka | 5,296 | -4,827 |
| Marble Falls | 7,394 | -6,925 |
| BarnettBARNETT SHALE | 7,820 | -7,351 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,185 | 10,203 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 1,725 | 12.25 | 700 S |
| 7.625 | 7,853 | 9.875 | 220 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. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Oct 30, 2008 | Apr 23, 2008 | — |
| 00 | Oct 14, 2008 | Oct 16, 2007 | Yes |
| 00 | Oct 7, 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.
- Wellbore filings for 42-439-31826 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-439-31826 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.
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/43931826, documented in the API reference.