Pacific Exploration & Production Corp. and its units filed for protection from creditors in Canada after failing to cope with a prolonged slump in oil prices.

The company missed an interest payment due on March 28, making it the first Toronto-listed oil and gas company in the past year to delay a payment.

Pacific Exploration reached a deal with debtholders, including Catalyst Capital Group Inc., last week to convert almost all of its debt to equity.

The company, formerly known as Pacific Rubiales Energy Corp., said on April 27 it had filed for creditor protection under the Companies' Creditors Arrangement Act, an insolvency law in Canada that allows companies to restructure their finances and stay in business.

Pacific Exploration also said it planned to file for protection under Chapter 15 of the U.S. Bankruptcy Code at a later date.

Under U.S. bankruptcy laws, Chapter 15 grants a foreign company protection from creditors looking to seize its assets in the country.

The Toronto Stock Exchange suspended the trading of the company's shares last week. Until then, the stock had lost 65% since Dec. 17, when the company said lenders had formed a committee to negotiate the terms of a credit agreement.