WELL · 42-255-36287 · DISTRICT 2

SCR B-Turnbull H 1H Psa #1H

Y

Karnes County · Sugarkane (Eagle Ford) field · Producing  · Horizontal

Scr B-Turnbull H 1h Psa #1H (API 42-255-36287) is a horizontal well in Karnes County operated by Marathon Oil EF LLC, completed May 17, 2022 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued February 4, 2019, permitted to 22,000 ft.

Completion filings report 10 formation tops, including Yegua, Queen City, Wilcox, Austin Chalk.

Its lease has reported 330K barrels of oil and 1.26M mcf of gas since December 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 scheduleMarathon Oil EF LLC
Production reportsMarathon Oil EF LLCthrough Mar 2026
Latest permitMarathon Oil EF LLCFeb 4, 2019
22,000
total depth, ft
1
permits on file
Feb 4, 2019
last permit issued
May 17, 2022
completed
330K
cumulative oil, bbl
1.26M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Dec 2019 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
May 17, 2022
Shut in
—
Plugged
—

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

Surface location

28.768650, -98.070178

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 →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
SCR B-Turnbull H 1H Psa O-2-11926Sugarkane (Eagle Ford)Marathon Oil EF LLC1330K1.26MDec 2019 – Jul 2026

Oil, barrels lease total

Last 12 months 8,688 · prior 12 23,390(-63%)

02K4K202420252026

Gas, mcf lease total

Last 12 months 38,827 · prior 12 101,879(-62%)

05K10K15K202420252026

Chain of custody

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

  1. 1Marathon Oil EF LLCMar 2020 → Mar 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
848278-99DrillMarathon Oil EF LLCJan 2, 2019Feb 4, 2019Feb 7, 202022,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-2-11926————

Formation tops

As filed on W-2/G-1. Subsea from 408 ft elevation.Download CSV →

FormationMD ftSubsea
YeguaYEGUA - DISPOSAL1,305-897
Queen City3,544-3,136
WilcoxWILCOX - DISPOSAL5,868-5,460
Austin ChalkAUSTIN CHALK - H2S11,275-10,867
Eagle FordEAGLE FORD - H2S11,412-11,004
Carrizo——
EdwardsEDWARDS - H2S——
FrioFRIO - DISPOSAL——
Reklaw——
SligoSLIGO - H2S——

Perforations

Perforated and open-hole intervals.

FromToType
11,67619,030Perforated
11,67619,139Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6255,73612.251,420 S
5.519,1398.753,165 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 →

SuffixFiledW-2 / G-1 dateLogs referenced
00Aug 5, 2022Jul 13, 2022Yes
00Sep 21, 2020Sep 11, 2020—
00Jul 1, 2020May 9, 2020Yes
00Apr 23, 2020Feb 15, 2020Yes

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.

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 →

Turnbull Unit H42-255-36288

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

Yegua1,305-898
Queen City3,544-3,137
Wilcox5,868-5,461
Austin Chalk11,261-10,854
Eagle Ford11,432-11,025
Reklaw—
Sligo—
Carrizo—

10 TOPS · FIRST 8

San Christoval Ranch Unit B42-255-36286

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

Yegua1,305-896
Queen City3,544-3,135
Wilcox5,868-5,459
Austin Chalk11,285-10,876
Eagle Ford11,443-11,034
Reklaw—
Sligo—
Edwards—

10 TOPS · FIRST 8

Turnbull Unit H42-255-36289

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

Wilcox588-180
Yegua1,305-897
Queen City3,544-3,136
Austin Chalk11,280-10,872
Eagle Ford11,427-11,019
Carrizo—
Sligo—
Reklaw—

10 TOPS · FIRST 8

Turnbull Unit H42-255-35764

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

Yegua1,254-843
Queen City3,493-3,082
Wilcox5,817-5,406
Austin Chalk11,275-10,864
Eagle Ford11,415-11,004
Frio—
Carrizo—
Edwards—

10 TOPS · FIRST 8

Turnbull Unit H42-255-35765

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

Yegua1,254-844
Queen City3,493-3,083
Wilcox5,817-5,407
Austin Chalk11,286-10,876
Eagle Ford11,418-11,008
Reklaw—
Sligo—
Carrizo—

10 TOPS · FIRST 8

Turnbull Unit H42-255-35766

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

Yegua1,254-845
Queen City3,493-3,084
Wilcox5,817-5,408
Austin Chalk11,274-10,865
Eagle Ford11,416-11,007
Carrizo—
Sligo—
Reklaw—

10 TOPS · FIRST 8

Turnbull Unit H42-255-35767

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

Yegua1,254-845
Queen City3,493-3,084
Wilcox5,817-5,408
Austin Chalk11,267-10,858
Eagle Ford11,409-11,000
Reklaw—
Frio—
Edwards—

10 TOPS · FIRST 8

Julie Beck42-255-36922

1.2 KM · Teal Operating, LLC · Section with this well →

Frio1,000-612
Yegua1,300-912
Queen City5,000-4,612
Reklaw5,200-4,812
Carrizo5,300-4,912
Wilcox7,000-6,612
Austin Chalk10,900-10,512
Eagle Ford11,217-10,829

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

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