ST. LOUIS (AP) — Arch Coal Inc. said Tuesday that its second-quarter loss widened partly because of nagging rail disruptions and weaker prices for coal used in making steel, though cost controls helped the coal producer’s latest earnings surpass analysts’ expectations.

The St. Louis-based company posted a loss of $96.9 million, or 46 cents per share, compared with a loss of $72.2 million, or 34 cents per share, in the same quarter a year earlier.