TEXAS · WELLS · LEON COUNTY · FULLEN GAS UNIT LEASE · API 42-289-31847 · DISTRICT 05

Fullen Gas Unit #4H

Shut in

Leon County · Bear Grass (Cotton Valley Cons) field · Producing  · Horizontal

Fullen Gas Unit #4H (API 42-289-31847) is a horizontal well in Leon County operated by Hilcorp Energy Company, completed October 29, 2010 and listed as producing on the RRC schedule, shut in July 1, 2022.

The RRC has issued one drilling permit, issued December 15, 2009, permitted to 14,285 ft.

It was permitted by Xto Energy Inc. and has since transferred to Hilcorp Energy Company on the wellbore schedule.

Completion filings report 5 formation tops, including Pettit, Travis Peak, Cotton Valley, Knowles.

Its lease has reported 5 barrels of oil and 6.93M mcf of gas since October 2010, last reporting volume in November 2025.

Operator of record

Hilcorp Energy Company

Permitted by XTO Energy Inc.; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active – Extension (X)
P-5 last filed
Mar 27, 2026
Permits on file
3,458
Phone
(713) 209-2400

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleHilcorp Energy Company
Production reportsHilcorp Energy Companythrough Nov 2025
Latest permitXTO Energy Inc.Dec 15, 2009

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

14,285
total depth, ft
1
permits on file
Dec 15, 2009
last permit issued
Oct 29, 2010
completed
5
cumulative oil, bbl
6.93M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Oct 2010 THROUGH Nov 2025

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Oct 29, 2010
Shut in
Jul 1, 2022
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
Fullen Gas Unit G-5-261195Bear Grass (Cotton Valley Cons)Hilcorp Energy Company156.93MOct 2010 – Nov 2025

Gas, mcf lease total

Last 12 months 44 · prior 12 9,979(-100%)

02K4K202420252026

Chain of custody

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

  1. 1XTO Energy Inc.Oct 2010 → Jun 2022
  2. 2Hilcorp Energy CompanyFeb 2024 → Nov 2025

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
688399-99DrillXTO Energy Inc.Dec 8, 2009Dec 15, 2009Jun 24, 201020,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Oct 29, 2010Fullen Gas Unit G-5-261195Bear Grass (Cotton Valley Cons)Hilcorp Energy CompanyProducing · shut in Jul 1, 202214,285

Formation tops

As filed on W-2/G-1. Subsea from 481 ft elevation.Download CSV →

FormationMD ftSubsea
Pettit8,880-8,399
Travis Peak9,157-8,676
Cotton ValleyCOTTON VALLEY SAND11,300-10,819
Knowles11,961-11,480
BossierBOSSIER A12,912-12,431
Cotton ValleyCOTTON VALLEY LIME14,103-13,622

Perforations

Perforated and open-hole intervals.

FromToType
14,57519,078Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,62312.25480 S
714,2458.751,300 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
00Nov 2, 2011Dec 14, 2010Yes

Well logs

1 log loaded from the RRC's log index, the latest received Sep 16, 2013. Density, Neutron, Resistivity. 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 describedFiles Intervalft, as filedDatereceivedSizeMB
COMBINATION: RESISTIVITY/NEUTRON/DENSITY POROSITYSpans Pettit, Travis Peak, Cotton Valley, Knowles, BossierTIFF1,599 to 13,551Sep 16, 2013run Jul 8, 20105.72

"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.

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

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/28931847, documented in the API reference.