WELL · 42-255-33578 · DISTRICT 2
Armstrong Unit B #3
Karnes County · Horizontal
Armstrong Unit B #3 (API 42-255-33578) is a permitted horizontal well in Karnes County filed by Burlington Resources O & G CO LP; no completion report is on file yet.
The RRC has issued 3 drilling permits (amended once) between 2014 and 2025, permitted to 17,000 ft.
Completion filings report 10 formation tops, including Yegua, Queen City, Reklaw, Carrizo.
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
Houston, TX · P-5 Y, filed Aug 4, 2025 · 5,130 permits on file · (800) 332-9449
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | none |
| Production reports | Burlington Resources O & G Co LPthrough Apr 2026 |
| Latest permit | Burlington Resources O & G Co LPJul 23, 2025 |
- 17,000
- total depth, ft
- 4
- permits on file
- Jul 23, 2025
- last permit issued
- —
- 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
- OFF SCHEDULE
- Completed
- —
- Shut in
- —
- Plugged
- —
Surface location
28.904692, -97.841892
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Karnes County.
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 |
|---|---|---|---|---|---|---|
| 909193-99 | Recompletion | Burlington Resources O & G Co LP | Jul 10, 2025 | Jul 23, 2025 | — | 12,731 |
| 893827-99 | Recompletion | Burlington Resources O & G Co LP | Sep 19, 2023 | Sep 26, 2023 | — | 17,000 |
| 777472-98 | Drill | Burlington Resources O & G Co LP | Feb 26, 2014 | Feb 3, 2014 | Aug 11, 2014 | 17,000 |
| 777472-99 | Drill | Burlington Resources O & G Co LP | Jan 16, 2014 | Feb 3, 2014 | Aug 11, 2014 | 17,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-2-9758 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 313 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| YeguaYEGUA - DISPOSAL | 2,400 | -2,087 |
| Queen City | 4,255 | -3,942 |
| Reklaw | 4,500 | -4,187 |
| Carrizo | 5,300 | -4,987 |
| WilcoxWILCOX - DISPOSAL | 5,532 | -5,219 |
| Austin ChalkAUSTIN CHALK - H2S | 12,254 | -11,941 |
| Eagle FordEAGLE FORD - H2S | 12,462 | -12,149 |
| EdwardsEDWARDS - H2S | — | — |
| FrioFRIO - DISPOSAL | — | — |
| SligoSLIGO - H2S | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 12,565 | 16,823 | Perforated |
| 12,772 | 16,891 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 3,764 | 12.25 | 1,170 S |
| 5.5 | 17,078 | 8.75 | 1,966 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 | Sep 23, 2025 | Sep 4, 2025 | — |
| 00 | Nov 20, 2015 | Nov 11, 2015 | Yes |
| 00 | Oct 8, 2015 | Apr 15, 2015 | — |
| 00 | Sep 29, 2015 | Feb 2, 2015 | 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 42-255-33578 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-255-33578 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
Armstrong Unit B42-255-33573
0.0 KM · Burlington Resources O & G Co LP · Section with this well →
| Yegua | 2,400 | -2,087 |
| Queen City | 4,241 | -3,928 |
| Reklaw | 4,500 | -4,187 |
| Carrizo | 5,300 | -4,987 |
| Wilcox | 5,540 | -5,227 |
| Austin Chalk | 12,245 | -11,932 |
| Eagle Ford | 12,455 | -12,142 |
| Frio | — |
10 TOPS · FIRST 8
Armstrong Unit B42-255-33574
0.0 KM · Burlington Resources O & G Co LP · Section with this well →
| Eagle Ford | 1,243 | -930 |
| Yegua | 2,400 | -2,087 |
| Queen City | 4,240 | -3,927 |
| Reklaw | 4,500 | -4,187 |
| Carrizo | 5,300 | -4,987 |
| Wilcox | 5,506 | -5,193 |
| Austin Chalk | 12,248 | -11,935 |
| Sligo | — |
10 TOPS · FIRST 8
Armstrong Unit A42-255-33700
0.4 KM · Burlington Resources O & G Co LP · Section with this well →
| Yegua | 2,349 | -2,020 |
| Queen City | 4,266 | -3,937 |
| Reklaw | 4,450 | -4,121 |
| Carrizo | 4,957 | -4,628 |
| Wilcox | 5,518 | -5,189 |
| Austin Chalk | 12,271 | -11,942 |
| Eagle Ford | 12,482 | -12,153 |
| Sligo | — |
10 TOPS · FIRST 8
Armstrong Unit A42-255-33701
0.4 KM · Burlington Resources O & G Co LP · Section with this well →
| Yegua | 2,349 | -2,020 |
| Queen City | 4,268 | -3,939 |
| Reklaw | 4,450 | -4,121 |
| Carrizo | 4,957 | -4,628 |
| Wilcox | 5,533 | -5,204 |
| Austin Chalk | 12,263 | -11,934 |
| Eagle Ford | 12,446 | -12,117 |
| Edwards | — |
10 TOPS · FIRST 8
Kotara Unit A42-255-36819
1.2 KM · Burlington Resources O & G Co LP · Section with this well →
| Yegua | 1,616 | -1,263 |
| Queen City | 3,872 | -3,519 |
| Reklaw | 4,253 | -3,900 |
| Carrizo | 4,732 | -4,379 |
| Wilcox | 5,267 | -4,914 |
| Austin Chalk | 11,849 | -11,496 |
| Eagle Ford | 12,068 | -11,715 |
| Frio | — |
10 TOPS · FIRST 8
Kotara Unit A42-255-36818
1.2 KM · Burlington Resources O & G Co LP · Section with this well →
| Yegua | 1,619 | -1,266 |
| Queen City | 3,871 | -3,518 |
| Reklaw | 4,249 | -3,896 |
| Carrizo | 4,728 | -4,375 |
| Wilcox | 5,241 | -4,888 |
| Austin Chalk | 11,843 | -11,490 |
| Eagle Ford | 12,049 | -11,696 |
| Frio | — |
10 TOPS · FIRST 8
Kotara Unit A42-255-36817
1.2 KM · Burlington Resources O & G Co LP · Section with this well →
| Yegua | 1,612 | -1,259 |
| Queen City | 3,880 | -3,527 |
| Reklaw | 4,239 | -3,886 |
| Carrizo | 4,724 | -4,371 |
| Wilcox | 5,262 | -4,909 |
| Austin Chalk | 11,846 | -11,493 |
| Eagle Ford | 12,058 | -11,705 |
| Edwards | — |
10 TOPS · FIRST 8
Kotara Unit A42-255-34827
1.3 KM · Burlington Resources O & G Co LP · Section with this well →
| Yegua | 1,616 | -1,263 |
| Queen City | 3,869 | -3,516 |
| Reklaw | 4,217 | -3,864 |
| Carrizo | 4,721 | -4,368 |
| Wilcox | 5,264 | -4,911 |
| Austin Chalk | 11,842 | -11,489 |
| Eagle Ford | 12,053 | -11,700 |
| Edwards | — |
10 TOPS · FIRST 8
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/25533578, documented in the API reference.