THUNDERBIRD UNIT

Oil // district 2 // lease#10081

op: VALIDUS NRG AQUILAS ASSETCO LLC

cum_oil

2.6M BBL

cum_gas

0 MCF

wells

10

production

2012-05 — 2026-03

peak_month

2012-10

-- production_history

cum_oil: 2,585,369 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

44,282 BBL/mo

Di (annual)

23.9%

b-factor

0.1

EUR

2,463,249 BBL

R-squared

0.656

type

hyperbolic

-- wells (10)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
11HENCANA OIL & GAS(USA) INC.110,8002015-10-15
8HENCANA OIL & GAS(USA) INC.110,7002014-08-16
9HENCANA OIL & GAS(USA) INC.110,7002014-08-16
7HPLAINS EXPLORATION & PROD. CO.113,6002013-03-28
6HPLAINS EXPLORATION & PROD. CO.213,5002012-09-26
5HPLAINS EXPLORATION & PROD. CO.213,5002012-09-25
4HPLAINS EXPLORATION & PROD. CO.213,5002012-09-19
3HPLAINS EXPLORATION & PROD. CO.113,7002012-05-04
2HPLAINS EXPLORATION & PROD. CO.113,7002012-04-26
1HPLAINS EXPLORATION & PROD. CO.113,7002012-03-27
EOF // data source: Texas Railroad Commission // 2026