COFFIELD, H. H. -B-

Oil // district 1 // lease#1238

op: SIERRA MINERALS, INC.

cum_oil

210 BBL

cum_gas

0 MCF

wells

10

production

1993-01 — 2026-03

peak_month

1997-10

-- production_history

cum_oil: 210 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

21 BBL/mo

Di (annual)

191.9%

b-factor

0.0

EUR

127 BBL

R-squared

0.775

type

exponential

-- wells (10)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
10NELSON, BUDDY B.11,0001981-08-20
9NELSON, BUDDY B.11,0001981-06-02
6NELSON, BUDDY B.17001979-07-12
7NELSON, BUDDY B.17001979-07-12
8NELSON, BUDDY B.17001979-07-12
142-331-00151--------
242-331-00152--------
342-331-00150--------
442-331-80158--------
542-331-30175--------
EOF // multi-state drilling data platform // 2026