TEXAS · WELLS · HEMPHILL COUNTY · WEBB "A" LEASE · API 42-211-34754 · DISTRICT 08

Webb A #4H

Y

Hemphill County · Mendota NW. (Granite Wash) field · Producing  · Horizontal

Webb A #4H (API 42-211-34754) is a horizontal well in Hemphill County operated by Unit Petroleum Company, completed October 3, 2010 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued June 25, 2010, permitted to 9,773 ft.

Completion filings report 3 formation tops, including Brown Dolomite, Marmaton, Granite Wash.

Its lease has reported 71.9K barrels of oil and 1.77M mcf of gas since October 2010, last reporting volume in April 2026.

Operator of record

Unit Petroleum Company

Based in
Tulsa, OK
P-5 status
Active (A)
P-5 last filed
Jan 13, 2025
Permits on file
1,100
Phone
(918) 493-7700

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleUnit Petroleum Company
Production reportsUnit Petroleum Companythrough Apr 2026
Latest permitUnit Petroleum CompanyJun 25, 2010
9,773
total depth, ft
2
permits on file
Jun 25, 2010
last permit issued
Oct 3, 2010
completed
71.9K
cumulative oil, bbl
1.77M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Oct 2010 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Oct 3, 2010
Shut in
—
Plugged
—

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

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 lease this well is completed on; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Webb "A" G-14-262193Mendota, NW. (Granite Wash)Unit Petroleum Company171.9K1.77MOct 2010 – Apr 2026

Gas, mcf lease total

Last 12 months 21,345 · prior 12 21,303(+0%)

01K2K3K202420252026

Chain of custody

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

  1. 1Unit Petroleum CompanyOct 2010 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
697900-98DrillUnit Petroleum CompanyJun 29, 2010Jun 25, 2010Jul 26, 201010,000
697900-99DrillUnit Petroleum CompanyJun 21, 2010Jun 25, 2010Jul 26, 201010,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Oct 3, 2010Webb A G-14-262193Mendota NW. (Granite Wash)Unit Petroleum CompanyProducing9,773

Formation tops

As filed on W-2/G-1. Subsea from 2,642 ft elevation.Download CSV →

FormationMD ftSubsea
Brown Dolomite3,742-1,100
Marmaton8,960-6,318
Granite Wash9,398-6,756

Perforations

Perforated and open-hole intervals.

FromToType
10,07014,133Open hole

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6252,83012.251,650 S
710,0768.75250 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 →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Feb 16, 2012Feb 28, 2011Yes

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 filed since 2004 open from the RRC's log search for this well; none are loaded here for it.

Find logs withinmiles of this well:List →Map →

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/21134754, documented in the API reference.