WELL · 42-255-31915 · DISTRICT 2
Armstrong Unit B #1
Karnes County · Eagleville (Eagle Ford-2) field · Producing · Horizontal
Armstrong Unit B #1 (API 42-255-31915) is a horizontal well in Karnes County operated by Burlington Resources O & G CO LP, completed May 22, 2015 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued April 8, 2011, permitted to 13,000 ft.
Completion filings report 3 formation tops, including Pecan Gap, Austin Chalk, Eagle Ford.
Its lease has reported 1.44M barrels of oil and 3.76M mcf of gas since June 2011, last reporting in July 2026. The lease carries 5 wells, so these are lease totals, not this well alone.
Operator of record
Burlington Resources O & G Co LP
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Oct 30, 2025
- Permits on file
- 5,130
- Phone
- (832) 486-2737
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Burlington Resources O & G Co LP |
| Production reports | Burlington Resources O & G Co LPthrough Apr 2026 |
| Latest permit | Burlington Resources O & G Co LPApr 8, 2011 |
- 13,000
- total depth, ft
- 1
- permits on file
- Apr 8, 2011
- last permit issued
- May 22, 2015
- completed
- 1.44M
- cumulative oil, bbl
- 3.76M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jun 2011 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 22, 2015
- 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 |
|---|---|---|---|---|---|---|
| Armstrong Unit B O-2-9758 | Eagleville (Eagle Ford-2) | Burlington Resources O & G Co LP | 5 | 1.44M | 3.76M | Jun 2011 – Jul 2026 |
Oil, barrels lease total
Last 12 months 52,271 · prior 12 206,813(-75%)
Gas, mcf lease total
Last 12 months 234,493 · prior 12 602,645(-61%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Burlington Resources O & G Co LPOct 2011 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 712908-99 | Drill | Burlington Resources O & G Co LP | Mar 25, 2011 | Apr 8, 2011 | May 23, 2011 | 13,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-2-9758 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 291 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Pecan Gap | 12,025 | -11,734 |
| Austin Chalk | 12,237 | -11,946 |
| Eagle Ford | 12,413 | -12,122 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 12,888 | 17,451 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 4,013 | 12.25 | 1,260 S |
| 5.5 | 17,638 | 8.75 | 1,810 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 | Jul 19, 2018 | May 10, 2018 | — |
| 00 | Aug 18, 2015 | Dec 9, 2014 | — |
| 00 | Apr 9, 2012 | Jan 27, 2012 | — |
| 00 | Feb 7, 2012 | Oct 18, 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 42-255-31915 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-255-31915 → 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/25531915, documented in the API reference.