< leases

PORTER, J. B. JR ET AL UNIT

Oil · District 03 · Lease #12923

Operator: TANGLEWOOD OIL & GAS CO.

Fields: GIDDINGS (AUSTIN CHALK-3)

Cum Oil

32k BBL

Cum Gas

403k MCF

casinghead

Wells

1

Production

1993-01 — 2012-11

Peak Month

1998-04

Production History

Cum Oil: 32,460 BBL Cum Gas: 402,546 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,139 BBL/mo

Di (annual)

435.2%

b-factor

0.6

EUR

7,417 BBL

R-squared

0.560

type

hyperbolic

Operator History (from monthly production reports)

2020-12 — 2026-07 POCO LLC 68 mo
2013-01 — 2020-11 PROGENIES OPERATING LLC 95 mo
2001-07 — 2012-12 SQUARE ONE CORPORATION 138 mo
2000-05 — 2001-06 CROWNQUEST OPERATING, LLC 14 mo
1999-06 — 2000-04 CW CROCKETT, INC. 11 mo
1997-12 — 1999-05 TANGLEWOOD OIL & GAS CO. 18 mo
1995-09 — 1997-11 JN EXPLORATION & PRODUCTION LP 27 mo
1994-01 — 1995-08 RICHARDSON OPERATING COMPANY 20 mo
1993-01 — 1993-12 PRESIDIO EXPLORATION, INC. 12 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
142-287-30654SQUARE ONE CORPORATION29,1501988-02-04