ANP -135-

Oil // district 8 // lease#28090

op: RICHEY, RAY MANAGEMENT CO., INC.

cum_oil

45k BBL

cum_gas

0 MCF

wells

2

production

1997-01 — 2006-07

peak_month

1997-04

-- production_history

cum_oil: 44,928 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

3,075 BBL/mo

Di (annual)

86.0%

b-factor

0.2

EUR

53,556 BBL

R-squared

0.944

type

hyperbolic

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1MITCHELL ENERGY CORPORATION25,4001999-10-19
1LMITCHELL ENERGY CORPORATION25,4001999-10-19
EOF // multi-state drilling data platform // 2026