ROBERTSON

Oil · District 10 · Lease #36200

Operator: SOUTHWEST ROYALTIES, INC.

Cum Oil

90k BBL

Cum Gas

0 MCF

Wells

4

Production

1999-11 — 2026-03

Peak Month

2001-10

Production History

Cum Oil: 89,590 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

1,217 BBL/mo

Di (annual)

27.7%

b-factor

0.3

EUR

73,562 BBL

R-squared

0.876

type

hyperbolic

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4SOUTHWEST ROYALTIES, INC.18,0002001-07-03
3SOUTHWEST ROYALTIES, INC.17,9002001-03-14
2MILTEX OIL COMPANY28,0001999-09-20
1MILTEX OIL COMPANY18,1001997-12-18
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