Environmental Liabilities and Expenditures (Tables)

6 Months Ended

Jun. 30, 2011

Environmental Liabilities and Expenditures

Environmental loss contingencies by categories of sites

As of June 30, 2011, Occidental participated in or monitored remedial activities or proceedings at 168 sites.  The following table presents Occidental’s environmental remediation reserves as of June 30, 2011, the current portion of which is included in accrued liabilities ($78 million) and the remainder in deferred credits and other liabilities — other ($285 million).  The reserves are grouped as environmental remediation sites listed or proposed for listing by the U.S. Environmental Protection Agency on the CERCLA National Priorities List (NPL sites) and three categories of non-NPL sites — third-party sites, Occidental-operated sites and closed or non-operated Occidental sites.

	Number of Sites	Reserve Balance (in millions)
NPL sites	38	$	55
Third-party sites	80	97
Occidental-operated sites	21	117
Closed or non-operated Occidental sites	29	94
Total	168	$	363