MONTGOMERY 431

Oil · District 8A · Lease #68989

Operator: REATTA ENERGY, INC.

Cum Oil

414k BBL

Cum Gas

157k MCF

casinghead

Wells

2

Production

2006-08 — 2026-04

Peak Month

2007-12

Production History

Cum Oil: 413,510 BBL Cum Gas: 156,786 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

9,603 BBL/mo

Di (annual)

53.0%

b-factor

0.3

EUR

309,008 BBL

R-squared

0.897

type

hyperbolic

Operator History (from monthly production reports)

2006-08 — 2026-07 REATTA ENERGY, INC. 240 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2REATTA ENERGY, INC.19,5002006-10-30
1REATTA ENERGY, INC.19,5002006-04-11