WELL · 42-317-34547 · DISTRICT 8

Singleton C.B. #1

N

Martin County · Breedlove (Spraberry) field  · Vertical

Singleton C.B. #1 (API 42-317-34547) is a well in Martin County operated by Roff Operating Company LLC, completed May 28, 2005.

The RRC has issued one drilling permit, issued March 31, 2005, permitted to 9,000 ft.

Completion filings report 2 formation tops, including Clear Fork, Spraberry.

Its 2 leases have reported 595K barrels of oil and 399K mcf of gas since June 2005, last reporting in July 2026. The leases carry 12 wells, so these are lease totals, not this well alone.

Operator of record

Roff Operating Company LLC

Houston, TX · P-5 Active, filed Nov 12, 2025 · 102 permits on file · (713) 658-1038

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleRoff Operating Company LLC
Production reportsOvintiv USA Inc.through Apr 2026
Latest permitRoff Operating Company, LLCMar 31, 2005

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

9,000
total depth, ft
1
permits on file
Mar 31, 2005
last permit issued
May 28, 2005
completed
595K
cumulative oil, bbl
399K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jun 2005 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
May 28, 2005
Shut in
—
Plugged
—

Surface location

No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.

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 12 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
East Milagro Unit O-10-40636Breedlove (Spraberry)Ovintiv USA Inc.11538K256KMay 2011 – Jul 2026
Singleton, C.B. O-10-37622Breedlove (Spraberry)Roff Operating Company, LLC156.3K142KJun 2005 – Jul 2011

Oil, barrels lease total

Last 12 months 7,432 · prior 12 13,663(-46%)

05001K1.5K202420252026

Chain of custody

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

  1. 1Roff Operating Company, LLCJun 2005 → Nov 2021
  2. 2Black Swan Operating, LLCDec 2021 → May 2023
  3. 3Ovintiv USA Inc.Jun 2023 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
559795-99DrillRoff Operating Company, LLCMar 31, 2005Mar 31, 2005Apr 4, 20059,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-37622————
—— O-10-40636————

Formation tops

As filed on W-2/G-1. Download CSV →

FormationMD ft
Clear ForkCLEARFORK6,080
Spraberry8,100

Perforations

Perforated and open-hole intervals.

FromToType
8,2908,310Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37540217.5350 S
8.6254,444111,200 S
5.58,4987.875500 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
00Apr 25, 2011Oct 13, 2005Yes
00Apr 26, 2006Oct 13, 2005Yes
00Jan 27, 2006——

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) and the University Lands library. then paste it into their search.

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/31734547, documented in the API reference.