WILLIAMS, MAUDE, ETAL, -A-

Oil · District 02 · Lease #2589

Operator: QUINTANA PET. CORP.

Cum Oil

323k BBL

Cum Gas

573k MCF

casinghead

Wells

9

Production

1993-01 — 2025-04

Peak Month

1995-02

Production History

Cum Oil: 322,637 BBL Cum Gas: 572,638 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,368 BBL/mo

Di (annual)

9.7%

b-factor

0.0

EUR

291,795 BBL

R-squared

0.750

type

exponential

Operator History (from monthly production reports)

2000-12 — 2026-07 HILCORP ENERGY COMPANY 308 mo
1993-01 — 2000-11 QUINTANA PET. CORP. 95 mo

Wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
24HILCORP ENERGY COMPANY25,9252016-02-05
20HILCORP ENERGY COMPANY55,9252015-11-12
21 UHILCORP ENERGY COMPANY15,9252015-09-23
3GHILCORP ENERGY COMPANY16,0002012-03-07
3GUHILCORP ENERGY COMPANY16,0002012-03-07
11HILCORP ENERGY COMPANY55,9252010-03-30
23HILCORP ENERGY COMPANY25,9252009-03-19
16HILCORP ENERGY COMPANY45,9252002-11-20
15HILCORP ENERGY COMPANY56,2001994-08-09