Six Months Ended June 30,

(in thousands)

2012

2011

Cash paid during the period for:

Interest payments

$

384

$

170

Non-cash transactions:

Increase in net asset retirement obligations due to additions

$

10

$

102

Various assets acquired and liabilities assumed in acquisition (see Note 4)

$

—

$

6,635

Decrease in accounts payable and accrued liabilities included in oil and gas properties

$

(993

)

$

(194

)

Offering costs included in accounts payable

$

—

$

1,756

Net assets transferred from oil and gas properties to investment in affiliate

$

—

$

463