HARPER DEVONIAN UNIT

Oil · District 08 · Lease #20609

Operator: OXY USA WTP LP

Cum Oil

2.3M BBL

Cum Gas

16.0M MCF

casinghead

Wells

42

Production

1993-01 — 2026-04

Peak Month

2002-07

Production History

Cum Oil: 2,328,342 BBL Cum Gas: 15,976,274 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

9,832 BBL/mo

Di (annual)

16.3%

b-factor

0.0

EUR

724,426 BBL

R-squared

0.872

type

exponential

Operator History (from monthly production reports)

2026-05 — 2026-07 OXY USA WTP EOR, LLC 3 mo
2001-01 — 2026-04 OXY USA WTP LP 304 mo
1993-01 — 2000-12 OXY USA INC. 96 mo

Wells (42)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1711OXY USA WTP LP110,4062019-12-17
1711GOXY USA WTP LP110,4062019-12-17
714OXY USA WTP LP111,5002014-10-24
715OXY USA WTP LP111,5002014-09-26
616OXY USA WTP LP211,5002014-07-10
712OXY USA WTP LP111,0002013-02-13
1507OXY USA WTP LP111,0002013-01-08
614OXY USA WTP LP211,0002012-12-18
711OXY USA WTP LP211,5002012-12-18
710OXY USA WTP LP111,0002012-05-09
1903OXY USA WTP LP111,7502012-05-07
1613GOXY USA WTP LP110,4002003-03-25
709GOXY USA WTP LP110,5002003-03-25
703OXY USA WTP LP110,8202000-01-14
703 LOXY USA WTP LP110,8202000-01-14
701OXY USA WTP LP110,8301999-08-16
701 LOXY USA WTP LP110,8301999-08-16
708OXY USA WTP LP110,5061997-03-25
708GOXY USA WTP LP110,5061997-03-25
1002OXY USA WTP LP212,1681995-07-11
706OXY USA WTP LP19,0001994-05-24
1902OXY USA WTP LP212,4671985-12-05
100142-135-84130OXY USA WTP LP------
140142-135-10335BURLESON PETROLEUM, INC.------
150642-135-10005OXY USA WTP LP------
161142-135-10364OXY USA WTP LP------
161242-135-10628OXY USA WTP LP------
170942-135-10361FORMENTERA OPERATIONS LLC------
180442-135-10069OXY USA WTP LP------
180542-135-32067OXY USA WTP LP------
200342-135-20239OXY USA WTP LP------
20142-135-10293OXY USA WTP LP------
260942-135-20362OXY USA WTP LP------
60842-135-10283OXY USA WTP LP------
60942-135-10414OXY USA WTP LP------
61142-135-20741OXY USA WTP LP------
61242-135-20742OXY USA WTP LP------
61342-135-84124OXY USA WTP LP------
70242-135-10131OXY USA WTP LP------
70542-135-10006OXY USA WTP LP------
80242-135-20550OXY USA WTP LP------
803G42-135-20327OXY USA WTP LP------