Major Customers

12 Months Ended

Mar. 31, 2012

Notes to Financial Statements [Abstract]

8. Major Customers

Currently, we operate exclusively within the United States and our revenues and operating profit are derived predominately from the oil and gas industry.  Oil and gas production is sold to various purchasers and the receivables are unsecured.  Historically, we have not experienced significant credit losses on our oil and gas accounts and management is of the opinion that significant credit risk does not exist.  Management is of the opinion that the loss of any one purchaser would not have an adverse effect on our ability to sell our oil and gas production.

In fiscal 2012, one customer accounted for 22% of the total oil and gas revenues and 24% of the total oil and gas accounts receivable.  In fiscal 2011 and 2010, two customers accounted for 28% and 32% of the total oil and gas revenues and 25% and 23% of the total oil and gas accounts receivable, respectively.