HILBURN, S., ESTATE -A-

Oil · District 6E · Lease #6823

Operator: CHEVRON U. S. A. INC.

Fields: EAST TEXAS

Cum Oil

102k BBL

Cum Gas

48k MCF

casinghead

Wells

4

Production

1993-01 — 2026-04

Peak Month

2002-12

Production History

Cum Oil: 101,568 BBL Cum Gas: 48,071 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

243 BBL/mo

Di (annual)

5.5%

b-factor

0.0

EUR

49,306 BBL

R-squared

0.433

type

exponential

Operator History (from monthly production reports)

2015-01 — 2026-07 BASA RESOURCES, INC. 139 mo
1993-01 — 2014-12 CHEVRON U. S. A. INC. 264 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
130BASA RESOURCES, INC.13,8002015-08-18
12442-183-83299BASA RESOURCES, INC.------
3842-183-83288BASA RESOURCES, INC.------
6142-183-83290BASA RESOURCES, INC.------