TEXAS · WELLS · MARTIN COUNTY · KELLY -A- LEASE · API 42-317-34150 · DISTRICT 7B

Kelly -A- #4

Y

Martin County · Spraberry (Trend Area) field · Producing  · Vertical

Kelly -A- #4 (API 42-317-34150) is a well in Martin County operated by Diamondback E&P LLC, completed November 20, 1998 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued December 9, 1997, permitted to 10,700 ft.

It was permitted by Stephens, Autry C. and has since transferred to Diamondback E&P LLC on the wellbore schedule.

Completion filings report 3 formation tops, including Spraberry, Dean, Wolfcamp.

Its lease has reported 66.1K barrels of oil and 73.3K mcf of gas since February 1999, last reporting volume in April 2026.

Operator of record

Diamondback E&P LLC

Permitted by Stephens, Autry C.; the EWA schedule now lists a different operator.

Based in
Midland, TX
P-5 status
Active – Extension (X)
P-5 last filed
May 4, 2026
Permits on file
5,243
Phone
(432) 221-7400

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleDiamondback E&P LLC
Production reportsDiamondback E&P LLCthrough Apr 2026
Latest permitStephens, Autry C.Dec 9, 1997

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

10,700
total depth, ft
1
permits on file
Dec 9, 1997
last permit issued
Nov 20, 1998
completed
66.1K
cumulative oil, bbl
73.3K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Feb 1999 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Nov 20, 1998
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
Kelly -A- O-10-35973Spraberry (Trend Area)Diamondback E&P LLC166.1K73.3KFeb 1999 – Apr 2026

Oil, barrels lease total

Last 12 months 1,137 · prior 12 1,054(+8%)

050100150202420252026

Gas, mcf lease total

Last 12 months 0 · prior 12 619(-100%)

050100150202420252026

Chain of custody

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

  1. 1Stephens, Autry C.Feb 1999 → Aug 2000
  2. 2Endeavor Energy Resources L.P.Sep 2000 → Dec 2024
  3. 3Diamondback E&P LLCJan 2025 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
470954-99DrillStephens, Autry C.Dec 8, 1997Dec 9, 1997Apr 15, 199811,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Nov 20, 1998Kelly -A- O-10-35973Spraberry (Trend Area)Diamondback E&P LLCProducing10,700

Formation tops

As filed on W-2/G-1. Subsea from 2,742 ft elevation.Download CSV →

FormationMD ftSubsea
SpraberryLOWER SPRABERRY7,871-5,129
Dean8,551-5,809
WolfcampUPPER WOLFCAMP8,861-6,119

Perforations

Perforated and open-hole intervals.

FromToType
7,87110,267Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
12.7533917.5400 S
8.6254,77011475 S
4.510,7007.8751,200 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
00Apr 20, 1999Mar 18, 1999Yes
00Mar 31, 1999——

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. The University Lands library has no per-well link: then paste it into its search.

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/31734150, documented in the API reference.