WELL · 42-255-36524 · DISTRICT 2

Gross-Robert-Luna Psa #1H

Karnes County · Eagleville (Eagle Ford-2) field · Producing · Horizontal

Gross-Robert-Luna Psa #1H (API 42-255-36524) is a horizontal well in Karnes County operated by Marathon Oil EF LLC, completed April 9, 2020 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued July 24, 2019, permitted to 22,000 ft.

Completion filings report 10 formation tops, including Queen City, Reklaw, Carrizo, Wilcox.

Its lease has reported 432K barrels of oil and 1.84M mcf of gas since September 2019, last reporting in July 2026.

Operator of record

Marathon Oil EF LLC

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 LLCJul 24, 2019

22,000: total depth, ft
1: permits on file
Jul 24, 2019: last permit issued
Apr 9, 2020: completed
432K: cumulative oil, bbl
1.84M: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Sep 2019 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule: ON SCHEDULE
Completed: Apr 9, 2020
Shut in: —
Plugged: —

Operator's P-5 on the schedule: Active (A)

Surface location

28.820486, -97.974609

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; this well is the only one on it.Why →

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Gross-Robert-Luna Psa O-2-11850	Eagleville (Eagle Ford-2)	Marathon Oil EF LLC	1	432K	1.84M	Sep 2019 – Jul 2026

Oil, barrels lease total

Last 12 months 14,592 · prior 12 14,730(-1%)

Gas, mcf lease total

Last 12 months 42,580 · prior 12 83,372(-49%)

Chain of custody

Every operator that reported production on this well's lease, in order.

1Marathon Oil EF LLCNov 2019 → Apr 2026

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
854947-99	Drill	Marathon Oil EF LLC	Jul 9, 2019	Jul 24, 2019	Oct 19, 2019	22,000

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— O-2-11850	—	—	—	—

Formation tops

As filed on W-2/G-1. Subsea from 442 ft elevation.Download CSV →

Formation	MD ft	Subsea
Queen City	3,926	-3,484
Reklaw	4,359	-3,917
Carrizo	4,909	-4,467
WilcoxWILCOX - DISPOSAL	6,223	-5,781
Austin ChalkAUSTIN CHALK - H2S	11,811	-11,369
Eagle FordEAGLE FORD - H2S	12,002	-11,560
EdwardsEDWARDS - H2S	—	—
FrioFRIO - DISPOSAL	—	—
SligoSLIGO - H2S	—	—
YeguaYEGUA - DISPOSAL	—	—

Perforations

Perforated and open-hole intervals.

From	To	Type
12,167	20,885	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
9.625	6,069	12.25	1,482 S
5.5	20,994	8.75	3,897 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 →

Filed	W-2 / G-1 date	Logs referenced
Jun 9, 2020	Apr 28, 2020	Yes
Apr 13, 2020	Jan 10, 2020	Yes
Jan 27, 2020	Oct 11, 2019	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 42-255-36524 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-255-36524 → 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.

Open the cross-section →

Gross-Robert Psa42-255-36508

0.0 KM · Marathon Oil EF LLC · Section with this well →

Yegua	1,755	-1,314
Queen City	3,926	-3,485
Reklaw	4,359	-3,918
Carrizo	4,909	-4,468
Wilcox	6,223	-5,782
Austin Chalk	11,789	-11,348
Eagle Ford	11,962	-11,521
Sligo	—

10 TOPS · FIRST 8

Luna Unit42-255-36506

0.0 KM · Marathon Oil EF LLC · Section with this well →

Yegua	1,755	-1,313
Queen City	3,926	-3,484
Reklaw	4,359	-3,917
Carrizo	4,909	-4,467
Wilcox	6,223	-5,781
Austin Chalk	11,887	-11,445
Eagle Ford	12,057	-11,615
Frio	—

10 TOPS · FIRST 8

Gross-McClean Unit42-255-36507

0.0 KM · Marathon Oil EF LLC · Section with this well →

Yegua	1,755	-1,316
Queen City	3,926	-3,487
Reklaw	4,359	-3,920
Carrizo	4,909	-4,470
Wilcox	6,223	-5,784
Austin Chalk	11,766	-11,327
Eagle Ford	11,822	-11,383
Frio	—

10 TOPS · FIRST 8

Jordan Unit42-255-36033

0.7 KM · Marathon Oil EF LLC · Section with this well →

Yegua	1,681	-1,246
Queen City	4,013	-3,578
Reklaw	4,476	-4,041
Carrizo	4,980	-4,545
Wilcox	6,304	-5,869
Austin Chalk	11,736	-11,301
Eagle Ford	11,903	-11,468
Sligo	—

10 TOPS · FIRST 8

Jordan Unit42-255-36030

0.7 KM · Marathon Oil EF LLC · Section with this well →

Yegua	1,681	-1,246
Queen City	4,013	-3,578
Reklaw	4,476	-4,041
Carrizo	4,980	-4,545
Wilcox	6,304	-5,869
Austin Chalk	11,726	-11,291
Eagle Ford	11,888	-11,453
Frio	—

10 TOPS · FIRST 8

Gross-McLean Unit42-255-36027

0.7 KM · Marathon Oil EF LLC · Section with this well →

Yegua	1,681	-1,246
Queen City	4,013	-3,578
Reklaw	4,476	-4,041
Carrizo	4,980	-4,545
Wilcox	6,304	-5,869
Austin Chalk	11,729	-11,294
Eagle Ford	11,903	-11,468
Frio	—

10 TOPS · FIRST 8

Gross-McLean Unit42-255-36028

0.7 KM · Marathon Oil EF LLC · Section with this well →

Yegua	1,681	-1,246
Queen City	4,013	-3,578
Reklaw	4,476	-4,041
Carrizo	4,980	-4,545
Wilcox	6,304	-5,869
Austin Chalk	11,729	-11,294
Eagle Ford	11,903	-11,468
Edwards	—

10 TOPS · FIRST 8

Fransen Unit42-255-36029

0.8 KM · Marathon Oil EF LLC · Section with this well →

Yegua	1,681	-1,247
Queen City	4,013	-3,579
Reklaw	4,476	-4,042
Carrizo	4,980	-4,546
Wilcox	6,304	-5,870
Austin Chalk	11,745	-11,311
Eagle Ford	11,922	-11,488
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/25536524, documented in the API reference.