RICHARDSON TRUST

Oil · District 13 · Lease #20315

Operator: STEPHENS, AUTRY C.

Cum Oil

7k BBL

Cum Gas

0 MCF

Wells

4

Production

1993-01 — 2019-06

Peak Month

2012-06

Production History

Cum Oil: 7,442 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

141 BBL/mo

Di (annual)

731.2%

b-factor

0.6

EUR

505 BBL

R-squared

0.788

type

hyperbolic

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4MAHLER & SCOTT11,5001981-12-01
3MAHLER & SCOTT11,4501980-12-11
2MAHLER & SCOTT11,4501980-08-25
1MAHLER & SCOTT11,5001980-03-13
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