GLADYS CITY

Oil · District 03 · Lease #3959

Operator: TRI-UNION DEVELOPMENT CORP.

Fields: SPINDLETOP

Cum Oil

600k BBL

Cum Gas

60k MCF

casinghead

Wells

15

Production

1993-01 — 2026-04

Peak Month

1994-11

Production History

Cum Oil: 599,982 BBL Cum Gas: 60,074 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

8,400 BBL/mo

Di (annual)

123.7%

b-factor

1.2

EUR

429,729 BBL

R-squared

0.591

type

hyperbolic

Operator History (from monthly production reports)

2007-07 — 2026-07 KINGWOOD EXPLORATION LLC 229 mo
2006-12 — 2007-06 STROUD PRODUCTION LLC 7 mo
2004-11 — 2006-11 TEXCAL ENERGY (GP) LLC 25 mo
1998-04 — 2004-10 TRI-UNION DEVELOPMENT CORP. 79 mo
1993-01 — 1998-03 MW PETROLEUM CORPORATION 63 mo

Wells (15)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
128KINGWOOD EXPLORATION LLC25,3002013-11-12
195KINGWOOD EXPLORATION LLC15,3002008-05-05
192KINGWOOD EXPLORATION LLC15,2502007-08-08
186KINGWOOD EXPLORATION LLC14,2001994-07-12
187KINGWOOD EXPLORATION LLC14,2001994-07-12
183KINGWOOD EXPLORATION LLC15,5001993-12-09
184KINGWOOD EXPLORATION LLC14,1001993-12-09
185KINGWOOD EXPLORATION LLC12,5001993-12-09
181KINGWOOD EXPLORATION LLC14,2001978-11-08
179KINGWOOD EXPLORATION LLC15,0001978-06-08
168KINGWOOD EXPLORATION LLC15,0001977-07-20
12742-245-00823KINGWOOD EXPLORATION LLC------
14242-245-00838KINGWOOD EXPLORATION LLC------
16142-245-03162KINGWOOD EXPLORATION LLC------
16642-245-03384KINGWOOD EXPLORATION LLC------