TEXAS · WELLS · KARNES COUNTY · DEMING-LONG SA1 LEASE · API 42-255-38054 · DISTRICT 02
Deming-Long SA1 #1H
Karnes County · Sugarkane (Eagle Ford) field · Producing · Horizontal
Deming-Long Sa1 #1H (API 42-255-38054) is a horizontal well in Karnes County operated by Marathon Oil EF LLC, completed September 30, 2024 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued May 9, 2024, permitted to 13,571 ft.
Completion filings report 10 formation tops, including Carrizo, Wilcox, Austin Chalk, Eagle Ford.
Its lease has reported 232K barrels of oil and 2.19M mcf of gas since September 2024, last reporting volume in April 2026.
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 LLCMay 9, 2024 |
- 13,571
- total depth, ft
- 1
- permits on file
- May 9, 2024
- last permit issued
- Sep 30, 2024
- completed
- 232K
- cumulative oil, bbl
- 2.19M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2024 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 30, 2024
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
Surface location
28.894531, -97.696450 NAD27, as filed
28.894787, -97.696726 WGS84
Permit surface location from the RRC GIS record, referenced to NAD27 as the RRC files it; the WGS84 pair is the same point through NOAA's NADCON grid, and the map link uses it, in Karnes County.
Wells nearby
Every well with a location on file around this one, in any state, nearest first.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
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 |
|---|---|---|---|---|---|---|
| Deming-Long SA1 G-2-298466 | Sugarkane (Eagle Ford) | Marathon Oil EF LLC | 1 | 232K | 2.19M | Sep 2024 – Apr 2026 |
Gas, mcf lease total
Last 12 months 989,883 · prior 12 1,199,270(-17%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Marathon Oil EF LLCSep 2024 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 898556-99 | Drill | Marathon Oil EF LLC | Apr 2, 2024 | May 9, 2024 | Jun 13, 2024 | 22,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 30, 2024 | Deming-Long SA1 G-2-298466 | Sugarkane (Eagle Ford) | Marathon Oil EF LLC | Producing | 13,571 |
Formation tops
As filed on W-2/G-1. Subsea from 336 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Carrizo | 6,154 | -5,818 |
| WilcoxWILCOX - DISPOSAL | 6,363 | -6,027 |
| Austin ChalkAUSTIN CHALK - H2S | 13,113 | -12,777 |
| Eagle FordEAGLE FORD - H2S | 13,349 | -13,013 |
| EdwardsEDWARDS - H2S | — | — |
| FrioFRIO - DISPOSAL | — | — |
| Queen City | — | — |
| Reklaw | — | — |
| SligoSLIGO - H2S | — | — |
| YeguaYEGUA - DISPOSAL | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 13,743 | 23,012 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 4,421 | 12.25 | 1,234 S |
| 5.5 | 22,982 | 8.75 | 4,606 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jan 21, 2025 | Jan 7, 2025 | 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 42-255-38054 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-255-38054 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it.
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.
Deming-Herbern SA142-255-38053
0.0 KM · Marathon Oil EF LLC · Section with this well →
| Carrizo | 6,154 | -5,817 |
| Wilcox | 6,363 | -6,026 |
| Austin Chalk | 13,111 | -12,774 |
| Eagle Ford | 13,351 | -13,014 |
| Queen City | — | |
| Edwards | — | |
| Frio | — | |
| Yegua | — |
10 TOPS · FIRST 8
Deming-Debill SA142-255-38052
0.0 KM · Marathon Oil EF LLC · Section with this well →
| Carrizo | 6,154 | -5,817 |
| Wilcox | 6,363 | -6,026 |
| Austin Chalk | 13,135 | -12,798 |
| Eagle Ford | 13,386 | -13,049 |
| Sligo | — | |
| Reklaw | — | |
| Queen City | — | |
| Yegua | — |
10 TOPS · FIRST 8
Kirk 01 - LG01 - DB01 A42-255-37322
1.1 KM · Ensign Operating LLC · Section with this well →
| Queen City | 5,810 | -5,452 |
| Reklaw | 6,068 | -5,710 |
| Carrizo | 6,222 | -5,864 |
| Wilcox | 6,222 | -5,864 |
| Austin Chalk | 13,179 | -12,821 |
| Eagle Ford | 13,412 | -13,054 |
| Edwards | — | |
| Yegua | — |
10 TOPS · FIRST 8
Kirk 01 - LG01 - DB01 B42-255-37323
1.1 KM · Ensign Operating LLC · Section with this well →
| Queen City | 5,817 | -5,459 |
| Reklaw | 6,082 | -5,724 |
| Carrizo | 6,247 | -5,889 |
| Wilcox | 6,247 | -5,889 |
| Austin Chalk | 13,158 | -12,800 |
| Eagle Ford | 13,398 | -13,040 |
| Sligo | — | |
| Yegua | — |
10 TOPS · FIRST 8
Kirk 01 - LG01 - DB01 C42-255-37324
1.1 KM · Ensign Operating LLC · Section with this well →
| Queen City | 5,805 | -5,447 |
| Reklaw | 6,078 | -5,720 |
| Carrizo | 6,274 | -5,916 |
| Wilcox | 6,274 | -5,916 |
| Austin Chalk | 13,146 | -12,788 |
| Eagle Ford | 13,395 | -13,037 |
| Frio | — | |
| Sligo | — |
10 TOPS · FIRST 8
Kirk 01 - LG01 - DB01 D42-255-37325
1.1 KM · Ensign Operating LLC · Section with this well →
| Queen City | 5,813 | -5,455 |
| Reklaw | 6,071 | -5,713 |
| Carrizo | 6,227 | -5,869 |
| Wilcox | 6,227 | -5,869 |
| Austin Chalk | 13,165 | -12,807 |
| Eagle Ford | 13,403 | -13,045 |
| Yegua | — | |
| Sligo | — |
10 TOPS · FIRST 8
Kirk 01 - Long 01 A42-255-37326
1.1 KM · Ensign Operating LLC · Section with this well →
| Queen City | 5,807 | -5,449 |
| Reklaw | 6,071 | -5,713 |
| Wilcox | 6,211 | -5,853 |
| Carrizo | 6,211 | -5,853 |
| Austin Chalk | 13,181 | -12,823 |
| Eagle Ford | 13,411 | -13,053 |
| Edwards | — | |
| Sligo | — |
10 TOPS · FIRST 8
Gus Tips-Runge 1 (SA) C442-255-35557
1.8 KM · Statoil Texas Onshore Prop LLC · Section with this well →
| Yegua | 2,974 | -2,641 |
| Queen City | 5,073 | -4,740 |
| Reklaw | 6,142 | -5,809 |
| Carrizo | 6,293 | -5,960 |
| Wilcox | 6,387 | -6,054 |
| Austin Chalk | 13,045 | -12,712 |
| Eagle Ford | 13,270 | -12,937 |
| Sligo | — |
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/25538054, documented in the API reference.