AMACKER, BARNETT

Oil // district 9 // lease#16582

op: SOUTHWEST ROYALTIES, INC.

cum_oil

322k BBL

cum_gas

0 MCF

wells

5

production

2008-04 — 2026-03

peak_month

2008-08

-- production_history

cum_oil: 321,882 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

11,043 BBL/mo

Di (annual)

177.6%

b-factor

1.0

EUR

335,719 BBL

R-squared

0.596

type

hyperbolic

-- wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1SOUTHWEST ROYALTIES, INC.19,9772014-05-23
11SOUTHWEST ROYALTIES, INC.110,5002008-07-11
10SOUTHWEST ROYALTIES, INC.110,5002008-04-17
9SOUTHWEST ROYALTIES, INC.110,5002008-02-19
8SOUTHWEST ROYALTIES, INC.110,5002008-01-10
EOF // data source: Texas Railroad Commission // 2026