Occidental Petroleum 2012 Annual Report Download - page 50
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ASSET RETIREMENT OBLIGATIONS
For the years ended December 31, (in millions)
2011
Beginning balance
$ 800
Liabilities incurred – capitalized to PP&E
74
Liabilities settled and paid
(53)
Accretion expense
48
Acquisitions and other – capitalized to PP&E
177
Revisions to estimated cash flows – capitalized to PP&E
43
Ending balance
$1,089
DERIVATIVE INSTRUMENTS
STOCK-BASED INCENTIVE PLANS