WELL · 42-135-42865 · DISTRICT 8
Leon (AW) #19H
Ector County · Sallie Ann (Spraberry-Wolfcamp) field · Horizontal
Leon (AW) #19H (API 42-135-42865) is a horizontal well in Ector County operated by Firebird Energy LLC, completed July 19, 2014.
The RRC has issued 2 drilling permits between 2014 and 2019, permitted to 11,000 ft.
It was permitted by Fdl Operating, LLC and has since transferred to Firebird Energy LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Santa Rosa, Yates, Queen, San Andres.
Its 3 leases have reported 429K barrels of oil and 742K mcf of gas since April 2011, last reporting in July 2026. The leases carry 10 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by FDL Operating, LLC; the EWA schedule now lists a different operator.
Fort Worth, TX · P-5 Y, filed Mar 4, 2026 · 152 permits on file · (817) 857-7800
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Firebird Energy LLC |
| Production reports | Diamondback E&P LLCthrough Apr 2026 |
| Latest permit | FDL Operating, LLCJun 25, 2019 |
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
- 2
- permits on file
- Jun 25, 2019
- last permit issued
- Jul 19, 2014
- completed
- 429K
- cumulative oil, bbl
- 742K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Apr 2011 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 19, 2014
- Shut in
- —
- Plugged
- —
Surface location
31.665315, -102.347723
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Ector County.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the 3 leases this well is completed on; they carry 10 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Leon (AW) O-10-52482 | Spraberry (Trend Area) | Diamondback E&P LLC | 1 | 78.3K | 278K | Jul 2018 – Jul 2026 |
| Leon (AW) O-10-50095 | Spraberry (Trend Area) | Firebird Energy LLC | 1 | 185K | 202K | Apr 2011 – Jun 2020 |
| Leon O-10-41558 | Sallie Ann (Spraberry-Wolfcamp) | Firebird Energy LLC | 8 | 165K | 262K | Apr 2011 – Sep 2019 |
Oil, barrels lease total
Last 12 months 1,491 · prior 12 2,280(-35%)
Gas, mcf lease total
Last 12 months 3,604 · prior 12 7,173(-50%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Devon Energy Production Co, L.P.Jul 2011 → Jul 2016
- 2FDL Operating, LLCAug 2016 → Jun 2019
- 3Firebird Energy LLCJul 2019 → Nov 2022
- 4Diamondback E&P LLCDec 2022 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 854112-99 | Field transfer | FDL Operating, LLC | Jun 12, 2019 | Jun 25, 2019 | Mar 20, 2014 | 11,000 |
| 776922-99 | Drill | Devon Energy Production Co, L.P. | Jan 9, 2014 | Feb 25, 2014 | Mar 20, 2014 | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-41558 | — | — | — | — |
| — | — O-10-50095 | — | — | — | — |
| — | — O-10-52482 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,943 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Santa RosaSANTA ROSA BASE | 1,350 | 1,593 |
| Yates | 2,000 | 943 |
| Queen | 3,000 | -57 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 3,400 | -457 |
| Grayburg | 3,550 | -607 |
| Seven Rivers | 3,970 | -1,027 |
| Glorieta | 4,400 | -1,457 |
| Holt | 5,000 | -2,057 |
| Clear ForkCLEARFORK | 5,500 | -2,557 |
| Tubb | 6,100 | -3,157 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,426 | 17,650 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 473 | 17.5 | 505 S |
| 9.625 | 6,250 | 12.25 | 2,040 S |
| 9.625 | 9,250 | 12.25 | 1,740 S |
| 5.5 | 17,791 | 7.875 | 2,075 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 19, 2019 | Sep 16, 2019 | Yes |
| 00 | Jul 17, 2018 | Oct 15, 2014 | Yes |
| 00 | Oct 21, 2015 | Oct 15, 2014 | 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 42-135-42865 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-42865 → 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.
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.
Millie B42-135-41562
0.3 KM · FDL Operating, LLC · Section with this well →
| Spraberry | 6,632 | -3,693 |
| Spraberry | 8,548 | -5,609 |
| Wolfcamp | 9,171 | -6,232 |
| Strawn | 11,008 | -8,069 |
Millie A42-135-40566
0.5 KM · FDL Operating, LLC · Section with this well →
| San Andres | 5,035 | -2,091 |
| Spraberry | 6,313 | -3,369 |
| Wolfcamp | 9,076 | -6,132 |
| Strawn | 11,008 | -8,064 |
Leon42-135-40614
0.5 KM · FDL Operating, LLC · Section with this well →
| San Andres | 5,022 | -2,081 |
| Spraberry | 8,511 | -5,570 |
| Wolfcamp | 9,170 | -6,229 |
| Strawn | 11,008 | -8,067 |
Millie B42-135-41573
0.6 KM · FDL Operating, LLC · Section with this well →
| Clear Fork | 7,602 | -4,660 |
| Dean | 8,932 | -5,990 |
| Wolfcamp | 9,083 | -6,141 |
| Strawn | 11,008 | -8,066 |
Leon42-135-41377
0.7 KM · FDL Operating, LLC · Section with this well →
| Clear Fork | 7,645 | -4,708 |
| Spraberry | 8,514 | -5,577 |
| Wolfcamp | 9,182 | -6,245 |
| Strawn | 11,008 | -8,071 |
Millie B42-135-42119
0.7 KM · FDL Operating, LLC · Section with this well →
| Spraberry | 7,321 | -4,378 |
| Abo | 8,764 | -5,821 |
| Wolfcamp | 9,345 | -6,402 |
| Cisco | 9,905 | -6,962 |
Millie B (Alloc)42-135-42521
0.8 KM · FDL Operating, LLC · Section with this well →
| Abo | 8,766 | -5,825 |
| Dean | 8,960 | -6,019 |
| Wolfcamp | 9,147 | -6,206 |
| Wolfcamp | 9,282 | -6,341 |
Millie B42-135-40626
0.8 KM · FDL Operating, LLC · Section with this well →
| San Andres | 5,096 | -2,156 |
| Spraberry | 6,404 | -3,464 |
| Wolfcamp | 9,159 | -6,219 |
| Strawn | 11,008 | -8,068 |
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/13542865, documented in the API reference.