TEXAS · WELLS · KARNES COUNTY · L.B. HAILEY-DAVILA-ST. GER SA LEASE · API 42-255-37856 · DISTRICT 02
L.B. Hailey-Davila-St. Ger SA #1H
Karnes County · Eagleville (Eagle Ford-2) field · Producing · Horizontal
L.B. Hailey-Davila-ST. Ger SA #1H (API 42-255-37856) is a horizontal well in Karnes County operated by Marathon Oil EF LLC, completed April 10, 2024 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued September 12, 2023, permitted to 12,037 ft.
Completion filings report 12 formation tops, including Cook Mountain, Queen City, Reklaw, Carrizo.
No lease production has been reported under this well’s leases.
Operator of record
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Sep 26, 2025
- Permits on file
- 3,191
- Phone
- (832) 486-2737
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 | Marathon Oil EF LLCSep 12, 2023 |
- 12,037
- total depth, ft
- 2
- permits on file
- Sep 12, 2023
- last permit issued
- Apr 10, 2024
- completed
- 0
- cumulative oil, bbl
- 568K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2023 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 10, 2024
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
Surface location
28.797006, -98.007372
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| L.B. Hailey-Davila-St. Ger SA G-2-296236 | Eagleville (Eagle Ford-2) | Marathon Oil EF LLC | 1 | 0 | 568K | Oct 2023 – Jul 2026 |
Gas, mcf lease total
Last 12 months 211,792 · prior 12 322,954(-34%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Marathon Oil EF LLCApr 2024 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 893438-98 | Drill | Marathon Oil EF LLC | Sep 14, 2023 | Sep 12, 2023 | Oct 13, 2023 | 18,000 |
| 893438-99 | Drill | Marathon Oil EF LLC | Sep 5, 2023 | Sep 12, 2023 | Oct 13, 2023 | 18,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Apr 10, 2024 | L.B. Hailey-Davila-St. Ger SA G-2-296236 | Eagleville (Eagle Ford-2) | Marathon Oil EF LLC | Producing | 12,037 |
Formation tops
As filed on W-2/G-1. Subsea from 480 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Cook Mountain | 2,932 | -2,452 |
| Queen City | 3,939 | -3,459 |
| Reklaw | 4,473 | -3,993 |
| Carrizo | 4,874 | -4,394 |
| WilcoxWILCOX - DISPOSAL | 4,930 | -4,450 |
| Anacacho | 11,510 | -11,030 |
| Austin ChalkAUSTIN CHALK - H2S | 11,657 | -11,177 |
| Eagle FordEAGLE FORD - H2S | 11,803 | -11,323 |
| EdwardsEDWARDS - H2S | — | — |
| FrioFRIO - DISPOSAL | — | — |
| SligoSLIGO - H2S | — | — |
| YeguaYEGUA - DISPOSAL | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,910 | 17,505 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 6,037 | 12.25 | 1,480 S |
| 5.5 | 17,505 | 8.75 | 3,037 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 20, 2024 | Aug 13, 2024 | — |
| 00 | Feb 1, 2024 | Jan 16, 2024 | 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 42-255-37856 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-255-37856 → 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 neighbors, subsea-aligned so they line up regardless of surface terrain.
L.B. Hailey-Best Fenner SA42-255-37854
0.0 KM · Marathon Oil EF LLC · Section with this well →
| Cook Mounatain | 2,932 | -2,452 |
| Queen City | 3,939 | -3,459 |
| Reklaw | 4,473 | -3,993 |
| Carrizo | 4,874 | -4,394 |
| Wilcox | 4,930 | -4,450 |
| Austin Chalk | 11,658 | -11,178 |
| Eagle Ford | 11,811 | -11,331 |
| Sligo | — |
11 TOPS · FIRST 8
L.B. Hailey Unit42-255-37853
0.0 KM · Marathon Oil EF LLC · Section with this well →
| Cook Mountain | 2,932 | -2,452 |
| Queen City | 3,939 | -3,459 |
| Reklaw | 4,473 | -3,993 |
| Carrizo | 4,874 | -4,394 |
| Wilcox | 4,930 | -4,450 |
| Anacacho | 11,528 | -11,048 |
| Austin Chalk | 11,671 | -11,191 |
| Eagle Ford | 11,830 | -11,350 |
12 TOPS · FIRST 8
L.B. Hailey AC42-255-37852
0.0 KM · Marathon Oil EF LLC · Section with this well →
| Queen City | 3,939 | -3,460 |
| Reklaw | 4,473 | -3,994 |
| Carrizo | 4,874 | -4,395 |
| Wilcox | 4,930 | -4,451 |
| Austin Chalk | 11,674 | -11,195 |
| Sligo | — | |
| Yegua | — | |
| Frio | — |
10 TOPS · FIRST 8
L.b.hailey-Davila-Bailey SA42-255-37855
0.0 KM · Marathon Oil EF LLC · Section with this well →
| Cook Mountain | 2,932 | -2,453 |
| Queen City | 3,939 | -3,460 |
| Reklaw | 4,473 | -3,994 |
| Carrizo | 4,874 | -4,395 |
| Wilcox | 4,930 | -4,451 |
| Anacacho | 11,529 | -11,050 |
| Austin Chalk | 11,679 | -11,200 |
| Eagle Ford | 11,831 | -11,352 |
12 TOPS · FIRST 8
Davila-Graham Unit AC42-255-34892
1.2 KM · Marathon Oil EF LLC · Section with this well →
| Yegua | 1,592 | -1,153 |
| Queen City | 3,866 | -3,427 |
| Reklaw | 4,433 | -3,994 |
| Carrizo | 4,788 | -4,349 |
| Wilcox | 6,099 | -5,660 |
| Austin Chalk | 11,698 | -11,259 |
| Edwards | — | |
| Eagle Ford | — |
10 TOPS · FIRST 8
Davila-Graham Unit42-255-34891
1.2 KM · Marathon Oil EF LLC · Section with this well →
| Yegua | 1,592 | -1,153 |
| Queen City | 3,866 | -3,427 |
| Reklaw | 4,433 | -3,994 |
| Carrizo | 4,788 | -4,349 |
| Wilcox | 6,099 | -5,660 |
| Austin Chalk | 11,700 | -11,261 |
| Eagle Ford | 11,829 | -11,390 |
| Sligo | — |
10 TOPS · FIRST 8
Davila-Graham Unit42-255-34890
1.2 KM · Marathon Oil EF LLC · Section with this well →
| Yegua | 1,592 | -1,153 |
| Queen City | 3,866 | -3,427 |
| Reklaw | 4,433 | -3,994 |
| Carrizo | 4,788 | -4,349 |
| Wilcox | 6,099 | -5,660 |
| Austin Chalk | 11,701 | -11,262 |
| Eagle Ford | 11,835 | -11,396 |
| Edwards | — |
10 TOPS · FIRST 8
L.B. Hailey-Morgan SA42-255-37149
2.0 KM · Marathon Oil EF LLC · Section with this well →
| Queen City | 3,932 | -3,487 |
| Reklaw | 4,404 | -3,959 |
| Carrizo | 5,032 | -4,587 |
| Wilcox | 5,077 | -4,632 |
| Austin Chalk | 11,935 | -11,490 |
| Eagle Ford | 12,061 | -11,616 |
| Frio | — | |
| Yegua | — |
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/25537856, documented in the API reference.