WELL · 42-013-34721 · DISTRICT 1
Heard Bower West Unit #19H
Atascosa County · Eagleville (Eagle Ford-1) field · Producing · Horizontal
Heard Bower West Unit #19H (API 42-013-34721) is a horizontal well in Atascosa County operated by Marathon Oil EF LLC, completed May 7, 2022 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued May 15, 2013, permitted to 11,000 ft.
It was permitted by Aurora USA Development, LLC and has since transferred to Marathon Oil EF LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Midway, Anacacho, Eagle Ford.
Its lease has reported 1.26M barrels of oil and 1.48M mcf of gas since September 2011, last reporting in July 2026. The lease carries 9 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Aurora USA Development, LLC; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Aug 4, 2025 · 3,191 permits on file · (800) 332-9449
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Marathon Oil EF LLC |
| Production reports | Marathon Oil EF LLCthrough Apr 2026 |
| Latest permit | Aurora USA Development, LLCMay 15, 2013 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,000
- total depth, ft
- 1
- permits on file
- May 15, 2013
- last permit issued
- May 7, 2022
- completed
- 1.26M
- cumulative oil, bbl
- 1.48M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2011 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 7, 2022
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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 9 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Heard Bower West Unit O-1-15760 | Eagleville (Eagle Ford-1) | Marathon Oil EF LLC | 9 | 1.26M | 1.48M | Sep 2011 – Jul 2026 |
Oil, barrels lease total
Last 12 months 21,987 · prior 12 19,548(+12%)
Gas, mcf lease total
Last 12 months 40,364 · prior 12 21,786(+85%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Cinco Natural Resources Corp.Sep 2011 → Feb 2013
- 2Aurora USA Development, LLCMar 2013 → May 2014
- 3Baytex USA Development, LLCJun 2014 → Jun 2016
- 4Teal Operating, LLCJul 2016 → Oct 2021
- 5Marathon Oil EF LLCNov 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 762430-99 | Drill | Aurora USA Development, LLC | May 9, 2013 | May 15, 2013 | May 31, 2013 | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-15760 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 252 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Midway | 7,002 | -6,750 |
| Anacacho | 10,449 | -10,197 |
| Eagle Ford | 10,823 | -10,571 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,145 | 19,086 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 5,270 | 12.25 | 2,163 S |
| 5.5 | 19,277 | 8.5 | 3,199 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 27, 2022 | Jul 11, 2022 | — |
| 00 | Jan 10, 2014 | Nov 8, 2013 | 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 42-013-34721 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-013-34721 → 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/01334721, documented in the API reference.