SHANNON, J. M., EST. -A-

Oil // district 9 // lease#2327

op: ZEPHYR LONE STAR OPER CO.,L.L.C.

cum_oil

48k BBL

cum_gas

0 MCF

wells

12

production

1993-01 — 2018-07

peak_month

2005-07

-- production_history

cum_oil: 48,015 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

978 BBL/mo

Di (annual)

69.7%

b-factor

0.0

EUR

16,823 BBL

R-squared

0.508

type

exponential

-- wells (12)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6SUNDOWN ENERGY LP12,5282005-07-25
6WSUNDOWN ENERGY LP12,5282005-07-25
1SUNDOWN ENERGY, INC.12,6002004-08-12
9SUNDOWN ENERGY, INC.12,6002004-08-12
1042-105-02844--------
1142-105-02846--------
242-105-03225--------
342-105-03228--------
442-105-03230--------
542-105-03231--------
742-105-03233--------
842-105-02840--------
EOF // multi-state drilling data platform // 2026