42-439-30200

PRODUCING

ELKINS UNIT

TARRANT County · District 9 · RIVERBIRCH RESOURCES LLC · NEWARK EAST (BARNETT SHALE)

Permits

1

Max Depth

7,600 ft

First Permit

2001-04-24

Latest Activity

2001-04-24

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2001-10-04

Shut-In

Plugged

P-5 Org Status: Active

!

EWA / Production operator mismatch

Scheduling: RIVERBIRCH RESOURCES LLC ≠ Production: BRG LONE STAR LTD. (reported 2026-04)

!

EWA / Permit operator mismatch

Scheduling: RIVERBIRCH RESOURCES LLC ≠ Permit: CHIEF OIL & GAS LLC

Resolved via: productionBRG LONE STAR LTD.

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2001-05

Last Production

2026-07

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Formation Tops (9) Elevation 786 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
MARBLE FALLS 6,489 ft-5,703 ft
GLEN ROSE 6,534 ft-5,748 ft
BARNETT SHALE (Barnett)6,816 ft-6,030 ft
VIOLA 7,163 ft-6,377 ft
RODESSA 7,603 ft-6,817 ft
PETTIT 8,288 ft-7,502 ft
TRAVIS PEAK 8,563 ft-7,777 ft
KNOWLES LIME11,598 ft-10,812 ft
BOSSIER 11,978 ft-11,192 ft

As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗

Perforations (5)

IntervalType
6,816–7,102 ftPerforated
13,036–13,044 ftPerforated
13,073–13,079 ftPerforated
13,083–13,086 ftPerforated
13,096–13,100 ftPerforated

Casing (4)

SizeSet DepthCement
8.625"1,093 ft545 sx
9.625"5,250 ft1,350 sx
4.5"7,213 ft370 sx
7"12,308 ft1,240 sx

Permit History (1)

Applications (1)

#507903 A CHIEF OIL & GAS LLC
received 2001-04-18

Records & Logs

4 completion filings on record · 3 with log images at RRC.

W-2/G-1 2002-02-11 log on file
W-2/G-1 2002-03-05 log on file
W-2/G-1 2001-08-28 log on file
W-2/G-1 2001-09-27

Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.

No GPS coordinates yet

Coordinates come from the RRC GIS backfill and usually appear within days of permit issuance. Located in TARRANT County.

Well Details

Well Number
4
Max Depth
7,600 ft
Drill Type
Vertical
County
TARRANT
District
9
Completed
2001-10-04

Operator

Location
TULSA
P-5 Status
Active (filed 2026-05-07)
Cum Oil (all leases)
— bbl
Cum Gas (all leases)
— mcf
Activities
OPRS/G, OPRS/O