WELL · 42-123-34889 · DISTRICT 2
Maraldo-Koop a Usw B #1
DE Witt County · DE Witt (Eagle Ford Shale) field · Horizontal
Maraldo-Koop A Usw B #1 (API 42-123-34889) is a horizontal well in De Witt County operated by Burlington Resources O & G CO LP, completed March 17, 2021.
The RRC has issued 2 drilling permits between 2019 and 2021, permitted to 17,500 ft.
Completion filings report 8 formation tops, including Yegua, Wilcox, Austin Chalk, Eagle Ford.
No lease production has been reported under this well’s leases.
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 | Burlington Resources O & G Co LP |
| Production reports | Burlington Resources O & G Co LPthrough Apr 2026 |
| Latest permit | Burlington Resources O & G Co LPSep 1, 2021 |
- 17,500
- total depth, ft
- 2
- permits on file
- Sep 1, 2021
- last permit issued
- Mar 17, 2021
- completed
- 0
- cumulative oil, bbl
- 669K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 2020 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 17, 2021
- Shut in
- —
- Plugged
- —
Surface location
29.121028, -97.528761
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in DE Witt County.
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 →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Maraldo-Koop a Usw B G-2-291702 | DE Witt (Eagle Ford Shale) | Burlington Resources O & G Co LP | 1 | 0 | 669K | Mar 2021 – Jul 2026 |
| Maraldo-Koop a Usw B O-2-12072 | DE Witt (Eagle Ford Shale) | Burlington Resources O & G Co LP | 1 | 0 | 0 | May 2020 – Feb 2022 |
Gas, mcf lease total
Last 12 months 46,307 · prior 12 33,667(+38%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Burlington Resources O & G Co LPMar 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 872266-99 | Reclass | Burlington Resources O & G Co LP | Aug 25, 2021 | Sep 1, 2021 | Jun 13, 2020 | 17,500 |
| 856546-99 | Drill | Burlington Resources O & G Co LP | Aug 24, 2019 | Aug 29, 2019 | Apr 10, 2020 | 17,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-2-291702 | — | — | — | — |
| — | — O-2-12072 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 358 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yegua | 2,343 | -1,985 |
| Wilcox | 5,425 | -5,067 |
| Austin Chalk | 12,310 | -11,952 |
| Eagle Ford | 12,716 | -12,358 |
| Catahoula | — | — |
| EdwardsEDWARDS - H2S | — | — |
| EdwardsEDWARDS-H2S | — | — |
| Frio | — | — |
| Vicksburg | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 13,174 | 17,998 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 4,220 | 12.25 | 1,320 S |
| 5.5 | 18,080 | 8.75 | 1,955 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 | Apr 4, 2024 | Mar 14, 2024 | — |
| 00 | Jan 11, 2022 | Aug 26, 2021 | Yes |
| 00 | Jun 2, 2021 | Apr 7, 2021 | — |
| 00 | Oct 29, 2020 | Oct 12, 2020 | 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 42-123-34889 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-123-34889 → 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.
Maraldo A40342-123-34878
0.0 KM · Burlington Resources O & G Co LP · Section with this well →
| Yegua | 2,269 | -1,912 |
| Wilcox | 5,443 | -5,086 |
| Austin Chalk | 12,301 | -11,944 |
| Eagle Ford | 12,717 | -12,360 |
| Edwards | — | |
| Frio | — | |
| Vicksburg | — | |
| Catahoula | — |
Maraldo-Koop a Usw C42-123-34890
0.0 KM · Burlington Resources O & G Co LP · Section with this well →
| Yegua | 2,360 | -2,002 |
| Wilcox | 5,429 | -5,071 |
| Austin Chalk | 12,328 | -11,970 |
| Eagle Ford | 12,733 | -12,375 |
| Frio | — | |
| Catahoula | — | |
| Edwards | — | |
| Vicksburg | — |
Maraldo-Koop a Usw A42-123-34888
0.0 KM · Burlington Resources O & G Co LP · Section with this well →
| Yegua | 2,357 | -1,998 |
| Wilcox | 5,427 | -5,068 |
| Austin Chalk | 12,315 | -11,956 |
| Eagle Ford | 12,725 | -12,366 |
| Vicksburg | — | |
| Catahoula | — | |
| Edwards | — | |
| Frio | — |
Maraldo A40342-123-34886
0.0 KM · Burlington Resources O & G Co LP · Section with this well →
| Yegua | 2,267 | -1,910 |
| Wilcox | 5,437 | -5,080 |
| Austin Chalk | 12,290 | -11,933 |
| Eagle Ford | 12,705 | -12,348 |
| Catahoula | — | |
| Edwards | — | |
| Frio | — | |
| Vicksburg | — |
Maraldo A40342-123-34887
0.0 KM · Burlington Resources O & G Co LP · Section with this well →
| Yegua | 2,264 | -1,908 |
| Wilcox | 5,435 | -5,079 |
| Austin Chalk | 12,426 | -12,070 |
| Eagle Ford | 12,721 | -12,365 |
| Vicksburg | — | |
| Catahoula | — | |
| Edwards | — | |
| Frio | — |
Maraldo A-40342-123-32870
0.5 KM · Burlington Resources O & G Co LP · Section with this well →
| Pecan Gap | 12,155 | -11,768 |
| Austin Chalk | 12,369 | -11,982 |
| Eagle Ford | 12,805 | -12,418 |
Sandy A42-123-34789
0.8 KM · Devon Energy Production Co, L.P. · Section with this well →
| Frio | 601 | -233 |
| Vicksburg | 1,418 | -1,050 |
| Yegua | 2,210 | -1,842 |
| Wilcox | 5,253 | -4,885 |
| Pecan Gap | 12,168 | -11,800 |
| Austin Chalk | 12,377 | -12,009 |
| Eagle Ford | 12,749 | -12,381 |
| Catahoula | — |
9 TOPS · FIRST 8
Sandy A42-123-34790
0.8 KM · Devon Energy Production Co, L.P. · Section with this well →
| Frio | 601 | -233 |
| Vicksburg | 1,418 | -1,050 |
| Yegua | 2,210 | -1,842 |
| Wilcox | 5,253 | -4,885 |
| Pecan Gap | 12,165 | -11,797 |
| Austin Chalk | 12,366 | -11,998 |
| Eagle Ford | 12,751 | -12,383 |
| Catahoula | — |
9 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/12334889, documented in the API reference.