CONCENTRATION OF MAKRET AND CREDIT RISK

12 Months Ended

Sep. 30, 2012

All of our customers are in the oil and gas offshore exploration and production industry. This industry concentration has the potential to impact our overall exposure to market and credit risks, either positively or negatively, in that our customers could be affected by similar changes in economic, industry or other conditions. However, we believe that the credit risk posed by this industry concentration is offset by the creditworthiness of our customer base.

Revenues from significant customers are as follows (in thousands):



	Fiscal 2012		Fiscal 2011		Fiscal 2010
Chevron Australia	$	265,731	$	199,685	$	81,577
Sarawak Shell Bhd.	44,405		138,836		84,617
Kosmos Energy Ghana Inc.	90,088		136,205		90,936
Noble Energy Inc.	137,135		—		—

- Definition

The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date.

+ References

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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+ Details