HEFNER, R. A.

Oil · District 8A · Lease #5909

Operator: OXY USA INC.

Fields: SLAUGHTER

Cum Oil

840k BBL

Cum Gas

374k MCF

casinghead

Wells

10

Production

1993-01 — 2016-04

Peak Month

1994-08

Production History

Cum Oil: 840,328 BBL Cum Gas: 374,006 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

5,422 BBL/mo

Di (annual)

5.9%

b-factor

0.0

EUR

1,051,452 BBL

R-squared

0.824

type

exponential

Operator History (from monthly production reports)

2011-04 — 2016-08 OXY USA INC. 65 mo
2008-12 — 2011-03 BOPCO, L.P. 28 mo
2007-01 — 2008-11 BEPCO, L.P. 23 mo
1993-01 — 2006-12 BASS ENTERPRISES PRODUCTION CO. 168 mo

Wells (10)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
8HOXY USA INC.35,0642007-10-19
9OXY USA INC.15,0702003-03-12
8OXY USA INC.15,0642003-02-28
142-219-00113OXY USA INC.------
242-219-00112OXY USA INC.------
3W42-219-00111OXY USA INC.------
4W42-219-00110OXY USA INC.------
5W42-219-00109OXY USA INC.------
642-219-00066OXY USA INC.------
742-219-00067OXY USA INC.------