HOUSTON (AP) _ Phillips 66 (PSX) on Friday reported a fourth-quarter loss of $539 million, after reporting a profit in the same period a year earlier.

On a per-share basis, the Houston-based company said it had a loss of $1.23. Losses, adjusted for non-recurring costs, were $1.16 per share.

The results missed Wall Street expectations. The average estimate of seven analysts surveyed by Zacks Investment Research was for a loss of $1.09 per share.

The oil refiner posted revenue of $16.77 billion in the period.

For the year, the company reported a loss of $3.98 billion, or $9.06 per share, swinging to a loss in the period. Revenue was reported as $65.49 billion.

Phillips 66 shares have risen 2% since the beginning of the year, while the Standard & Poor's 500 index has increased roughly 1%. The stock has declined 26% in the last 12 months.

This story was generated by Automated Insights (http://automatedinsights.com/ap) using data from Zacks Investment Research. Access a Zacks stock report on PSX at https://www.zacks.com/ap/PSX

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