TEXAS · WELLS · KARNES COUNTY · API 42-255-37338 · DISTRICT 02
Murphy-Sinclair Unit #3H
Karnes County · Sugarkane (Eagle Ford) field · Producing · Horizontal
Murphy-Sinclair Unit #3H (API 42-255-37338) is a horizontal well in Karnes County operated by Marathon Oil EF LLC, completed September 27, 2022 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued November 17, 2021, permitted to 12,553 ft.
Completion filings report 10 formation tops, including Queen City, Reklaw, Carrizo, Wilcox.
Its 2 leases have reported 258K barrels of oil and 2.14M mcf of gas since May 2015, last reporting in July 2026. The leases carry 6 wells, so these are lease totals, not this well alone.
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 LLCNov 17, 2021 |
- 12,553
- total depth, ft
- 1
- permits on file
- Nov 17, 2021
- last permit issued
- Sep 27, 2022
- completed
- 258K
- cumulative oil, bbl
- 2.14M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 2015 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 27, 2022
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
Surface location
28.830043, -97.933426
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 2 leases this well is completed on; they carry 6 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Murphy-Sinclair Unit G-2-292857 | Sugarkane (Eagle Ford) | Marathon Oil EF LLC | 1 | 0 | 1.26M | May 2022 – Jul 2026 |
| Murphy-Sinclair Unit O-2-11140 | Sugarkane (Eagle Ford) | Marathon Oil EF LLC | 5 | 258K | 879K | May 2015 – Jul 2026 |
Gas, mcf lease total
Last 12 months 120,762 · prior 12 156,581(-23%)
Oil, barrels lease total
Last 12 months 4,392 · prior 12 2,401(+83%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Marathon Oil EF LLCJun 2015 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 874023-99 | Drill | Marathon Oil EF LLC | Oct 28, 2021 | Nov 17, 2021 | Dec 9, 2021 | 24,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 27, 2022 | Murphy-Sinclair Unit G-2-292857 | Sugarkane (Eagle Ford) | Marathon Oil EF LLC | Producing | 12,553 |
| Feb 16, 2022 | Murphy-Sinclair Unit O-2-11140 | Sugarkane (Eagle Ford) | Marathon Oil EF LLC | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 378 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen City | 4,077 | -3,699 |
| Reklaw | 4,577 | -4,199 |
| Carrizo | 5,136 | -4,758 |
| WilcoxWILCOX - DISPOSAL | 5,218 | -4,840 |
| Austin ChalkAUSTIN CHALK - H2S | 12,120 | -11,742 |
| Eagle FordEAGLE FORD - H2S | 12,293 | -11,915 |
| EdwardsEDWARDS - H2S | — | — |
| FrioFRIO - DISPOSAL | — | — |
| SligoSLIGO - H2S | — | — |
| YeguaYEGUA - DISPOSAL | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 12,752 | 19,168 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 5,712 | 12.25 | 1,659 S |
| 6 | 19,168 | 8.75 | 3,180 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 | Dec 15, 2022 | Nov 14, 2022 | Yes |
| 00 | Aug 5, 2022 | Jul 12, 2022 | Yes |
| 00 | Apr 11, 2022 | Mar 4, 2022 | 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 42-255-37338 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-255-37338 → 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.
Murphy-Kotara 1H SA42-255-37335
0.0 KM · Marathon Oil EF LLC · Section with this well →
| Queen City | 4,077 | -3,699 |
| Reklaw | 4,577 | -4,199 |
| Carrizo | 5,136 | -4,758 |
| Wilcox | 5,218 | -4,840 |
| Austin Chalk | 12,146 | -11,768 |
| Eagle Ford | 12,335 | -11,957 |
| Sligo | — | |
| Yegua | — |
10 TOPS · FIRST 8
Murphy-Kotara 2H SA42-255-37336
0.0 KM · Marathon Oil EF LLC · Section with this well →
| Queen City | 4,077 | -3,699 |
| Reklaw | 4,577 | -4,199 |
| Carrizo | 5,136 | -4,758 |
| Wilcox | 5,218 | -4,840 |
| Austin Chalk | 12,182 | -11,804 |
| Eagle Ford | 12,372 | -11,994 |
| Edwards | — | |
| Yegua | — |
10 TOPS · FIRST 8
Murphy-Kotara-Barboza SA42-255-37337
0.0 KM · Marathon Oil EF LLC · Section with this well →
| Queen City | 4,077 | -3,699 |
| Reklaw | 4,577 | -4,199 |
| Carrizo | 5,136 | -4,758 |
| Wilcox | 5,218 | -4,840 |
| Austin Chalk | 12,183 | -11,805 |
| Eagle Ford | 12,368 | -11,990 |
| Yegua | — | |
| Frio | — |
10 TOPS · FIRST 8
Franke Unit42-255-37873
0.7 KM · Devon Energy Production Co, L.P. · Section with this well →
| Frio | 1,823 | -1,497 |
| Yegua | 2,811 | -2,485 |
| Queen City | 3,911 | -3,585 |
| Reklaw | 4,340 | -4,014 |
| Carrizo | 4,867 | -4,541 |
| Wilcox | 5,149 | -4,823 |
| Austin Chalk | 12,049 | -11,723 |
| Eagle Ford | 12,206 | -11,880 |
10 TOPS · FIRST 8
Franke Unit42-255-37872
0.7 KM · Devon Energy Production Co, L.P. · Section with this well →
| Frio | 1,839 | -1,513 |
| Yegua | 2,825 | -2,499 |
| Queen City | 3,924 | -3,598 |
| Reklaw | 4,357 | -4,031 |
| Carrizo | 4,885 | -4,559 |
| Wilcox | 5,165 | -4,839 |
| Austin Chalk | 12,048 | -11,722 |
| Eagle Ford | 12,202 | -11,876 |
10 TOPS · FIRST 8
Kotara-Ridley Unit42-255-37874
0.8 KM · Devon Energy Production Co, L.P. · Section with this well →
| Frio | 1,850 | -1,524 |
| Yegua | 2,836 | -2,510 |
| Queen City | 3,933 | -3,607 |
| Reklaw | 4,368 | -4,042 |
| Carrizo | 4,898 | -4,572 |
| Wilcox | 5,176 | -4,850 |
| Austin Chalk | 12,022 | -11,696 |
| Eagle Ford | 12,190 | -11,864 |
10 TOPS · FIRST 8
Franke Unit42-255-37871
0.8 KM · Devon Energy Production Co, L.P. · Section with this well →
| Frio | 1,894 | -1,569 |
| Yegua | 2,881 | -2,556 |
| Queen City | 3,978 | -3,653 |
| Reklaw | 4,413 | -4,088 |
| Carrizo | 4,942 | -4,617 |
| Wilcox | 5,218 | -4,893 |
| Austin Chalk | 12,131 | -11,806 |
| Eagle Ford | 12,286 | -11,961 |
10 TOPS · FIRST 8
Kotara-Ridley Unit42-255-34696
1.3 KM · Encana Oil & Gas(usa) Inc. · Section with this well →
| Yegua | 2,083 | -1,766 |
| Queen City | 4,353 | -4,036 |
| Reklaw | 4,673 | -4,356 |
| Carrizo | 4,751 | -4,434 |
| Wilcox | 5,322 | -5,005 |
| Austin Chalk | 12,270 | -11,953 |
| Eagle Ford | 12,368 | -12,051 |
| 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/25537338, documented in the API reference.