TEXAS · WELLS · ANDREWS COUNTY · LOCKHART & BROWN -B- LEASE · API 42-003-43035 · DISTRICT 7B
Lockhart & Brown -B- #4
Andrews County · Fuhrman-Mascho field · Producing · Vertical
Lockhart & Brown -B- #4 (API 42-003-43035) is a well in Andrews County operated by Montare Operating Ltd., completed July 23, 2011 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued June 10, 2011, permitted to 4,837 ft.
It was permitted by Sandridge Expl. And Prod., LLC and has since transferred to Montare Operating Ltd. on the wellbore schedule.
Completion filings report 2 formation tops, including Grayburg, San Andres.
Its lease has reported 75.8K barrels of oil and 59.2K mcf of gas since January 1993, last reporting in July 2026. The lease carries 5 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Sandridge Expl. and Prod., LLC; the EWA schedule now lists a different operator.
- Based in
- Flower Mound, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Apr 17, 2026
- Permits on file
- 21
- Phone
- (469) 993-1960
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Montare Operating Ltd. |
| Production reports | Montare Operating, Ltd.through Apr 2026 |
| Latest permit | Sandridge Expl. and Prod., LLCJun 10, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,837
- total depth, ft
- 1
- permits on file
- Jun 10, 2011
- last permit issued
- Jul 23, 2011
- completed
- 75.8K
- cumulative oil, bbl
- 59.2K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 23, 2011
- 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; they carry 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Lockhart & Brown -B- O-10-14637 | Fuhrman-Mascho | Montare Operating, Ltd. | 5 | 75.8K | 59.2K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 2,195 · prior 12 2,057(+7%)
Gas, mcf lease total
Last 12 months 2,837 · prior 12 2,340(+21%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1LZS CorporationJan 1993 → Jan 2007
- 2OK Arena Operating CompanyMay 2007 → Jul 2010
- 3Sandridge Expl. and Prod., LLCSep 2010 → Oct 2018
- 4Avalon TX Operating, LLCNov 2018 → Jul 2021
- 5Montare Operating, Ltd.Aug 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 717945-99 | Drill | Sandridge Expl. and Prod., LLC | Jun 7, 2011 | Jun 10, 2011 | Jun 19, 2011 | 4,900 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jul 23, 2011 | Lockhart & Brown -B- O-10-14637 | Fuhrman-Mascho | Montare Operating Ltd. | Producing | 4,837 |
Formation tops
As filed on W-2/G-1. Subsea from 3,267 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| GrayburgLOWER GRAYBURG | 4,240 | -973 |
| San Andres | 4,560 | -1,293 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,415 | 4,674 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,640 | 12.25 | 810 S |
| 5.5 | 4,837 | 7.875 | 900 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 | Nov 13, 2012 | Oct 25, 2011 | Yes |
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 42-003-43035 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-003-43035 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. 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/00343035, documented in the API reference.