HILL "A"

Oil · District 10 · Lease #31724

Operator: STEVENS & TULL, INC.

Cum Oil

55k BBL

Cum Gas

0 MCF

Wells

5

Production

1993-01 — 2026-03

Peak Month

1993-08

Production History

Cum Oil: 55,444 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

664 BBL/mo

Di (annual)

29.0%

b-factor

0.5

EUR

48,329 BBL

R-squared

0.744

type

hyperbolic

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
508CHAPARRAL ENERGY, L.L.C.24,0002008-10-23
493STEVENS & TULL, INC.13,0001993-07-01
389STEVENS & TULL, INC.13,0001989-12-12
2STEVENS & TULL, INC.13,0001988-04-27
13 WAY OPERATING COMPANY13,0001988-02-19
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