TEXAS · WELLS · KARNES COUNTY · CEF-CREWS B AC SA 1 LEASE · API 42-255-36741 · DISTRICT 02

Cef-Crews B AC SA 1 #1H

Karnes County · Sugarkane (Austin Chalk) field · Producing · Horizontal

Cef-Crews B AC SA 1 #1H (API 42-255-36741) is a horizontal well in Karnes County operated by Bpx Operating Company, completed May 6, 2021 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued January 7, 2020, permitted to 11,021 ft.

Completion filings report 10 formation tops, including Frio, Yegua, Queen City, Reklaw.

Its lease has reported 243K barrels of oil and 733K mcf of gas since March 2020, last reporting volume in April 2026.

Operator of record

BPX Operating Company

Based in: Denver, CO
P-5 status: Active – Extension (X)
P-5 last filed: Jun 24, 2026
Permits on file: 1,576
Phone: (720) 439-5104

Email me new permits Email me new permits

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	BPX Operating Company
Production reports	BPX Operating Companythrough Apr 2026
Latest permit	BPX Operating CompanyJan 7, 2020

11,021: total depth, ft
1: permits on file
Jan 7, 2020: last permit issued
May 6, 2021: completed
243K: cumulative oil, bbl
733K: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · May 2021 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule: ON SCHEDULE
Completed: May 6, 2021
Shut in: —
Plugged: —

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

Surface location

29.032267, -97.813906 NAD27, as filed

29.032516, -97.814184 WGS84

Google Maps ↗

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

Withinmiles

Every well with a location on file around this one, in any state, nearest first.

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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
Cef-Crews B AC SA 1 O-2-12048	Sugarkane (Austin Chalk)	BPX Operating Company	1	243K	733K	Mar 2020 – Apr 2026

Oil, barrels lease total

Last 12 months 10,118 · prior 12 14,426(-30%)

Gas, mcf lease total

Last 12 months 23,906 · prior 12 80,218(-70%)

Chain of custody

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

1BPX Operating CompanyMay 2021 → Apr 2026

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
859711-99	Drill	BPX Operating Company	Dec 5, 2019	Jan 7, 2020	Feb 5, 2021	11,275

Completions

Completed	Lease	Field	Operator	Status	Depth
May 6, 2021	Cef-Crews B AC SA 1 O-2-12048	Sugarkane (Austin Chalk)	BPX Operating Company	Producing	11,021

Formation tops

As filed on W-2/G-1. Subsea from 319 ft elevation.Download CSV →

Formation	MD ft	Subsea
FrioFRIO - DISPOSAL	500	-181
YeguaYEGUA - DISPOSAL	793	-474
Queen City	2,976	-2,657
Reklaw	3,699	-3,380
WilcoxWILCOX - DISPOSAL	4,022	-3,703
Austin ChalkAUSTIN CHALK - H2S	10,366	-10,047
Carrizo	—	—
Eagle FordEAGLE FORD - H2S	—	—
EdwardsEDWARDS - H2S	—	—
SligoSLIGO - H2S	—	—

Perforations

Perforated and open-hole intervals.

From	To	Type
10,830	16,772	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
16	110	24	—
9.625	4,138	12.25	1,065 S
5.5	16,976	8.5	2,980 S
5.5	16,976	8.75	2,980 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	Aug 10, 2021	Jul 9, 2021	—
00	Sep 15, 2020	Sep 2, 2020	Yes

Well logs

1 log loaded from the RRC's log index, the latest received Aug 31, 2020. Gamma ray. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.

Open the RRC's log search for this well ↗

Logas described	Files	Intervalft, as filed	Datereceived	SizeMB
Gamma RaySpans Wilcox, Austin Chalk	TIFF	4,148 to 16,987	Aug 31, 2020	3.84

"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.

Find logs withinmiles of this well:List →Map →

Search the well logs loaded into Petrora →

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 42-255-36741 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-255-36741 → scanned completion filings

The logs loaded for this well are under Well logs, with the RRC's log search 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.

Open the cross-section →

Cef-Crews B SA 142-255-36751

0.0 KM · BPX Operating Company · Section with this well →

Frio	500	-181
Yegua	779	-460
Queen City	3,119	-2,800
Reklaw	3,605	-3,286
Wilcox	3,964	-3,645
Austin Chalk	10,412	-10,093
Eagle Ford	10,674	-10,355
Sligo	—

10 TOPS · FIRST 8

Yanta A-Crews B SA 242-255-36750

0.0 KM · BPX Operating Company · Section with this well →

Frio	500	-182
Yegua	726	-408
Queen City	2,922	-2,604
Reklaw	3,629	-3,311
Wilcox	3,966	-3,648
Austin Chalk	10,351	-10,033
Eagle Ford	10,588	-10,270
Sligo	—

10 TOPS · FIRST 8

Cef-Crews B AC SA 242-255-36742

0.0 KM · BPX Operating Company · Section with this well →

Frio	500	-182
Yegua	878	-560
Queen City	3,027	-2,709
Reklaw	3,620	-3,302
Wilcox	3,973	-3,655
Austin Chalk	10,423	-10,105
Sligo	—
Carrizo	—

10 TOPS · FIRST 8

Yanta a AC-Crews B AC SA 242-255-36739

0.0 KM · BPX Operating Company · Section with this well →

Frio	500	-182
Yegua	803	-485
Queen City	2,937	-2,619
Reklaw	3,623	-3,305
Wilcox	3,957	-3,639
Austin Chalk	10,341	-10,023
Carrizo	—
Edwards	—

10 TOPS · FIRST 8

Sublime Unit42-255-37286

0.5 KM · Magnolia Oil & Gas Operating LLC · Section with this well →

Wilcox	4,960	-4,667
Austin Chalk	10,324	-10,031
Eagle Ford	10,607	-10,314
Carrizo	—
Yegua	—
Sligo	—
Reklaw	—
Queen City	—

10 TOPS · FIRST 8

Sublime Unit42-255-37287

0.5 KM · Magnolia Oil & Gas Operating LLC · Section with this well →

Wilcox	4,970	-4,677
Austin Chalk	10,305	-10,012
Yegua	—
Queen City	—
Sligo	—
Edwards	—
Eagle Ford	—
Carrizo	—

10 TOPS · FIRST 8

Sublime Unit42-255-37270

0.5 KM · Magnolia Oil & Gas Operating LLC · Section with this well →

Wilcox	4,973	-4,680
Midway	7,219	-6,926
Navarro	8,525	-8,232
Tyler	9,268	-8,975
Pecan Gap	10,201	-9,908
Austin Chalk	10,311	-10,018
Eagle Ford	10,591	-10,298
Queen City	—

10 TOPS · FIRST 8

Keys Unit42-255-36687

0.6 KM · Magnolia Oil & Gas Operating LLC · Section with this well →

Midway	7,424	-7,131
Navarro	8,419	-8,126
Austin Chalk	10,260	-9,967
Eagleville (Eagle Ford)	10,535	-10,242
Queen City	—
Frio	—
Wilcox	—
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/25536741, documented in the API reference.