Revenue was $15.2 billion for the three months to December, down 27.9% from the year-ago period.
New chief executive Jose Antonio Gonzalez Anaya on Monday morning announced sweeping cuts to stabilise the company's balance sheets.
Production also continued to see declines overall: Crude production fell 3.5% to 2.277 million barrels per day from the 2014 period.
Gas output was also down 3.8% to 6.316
