Tulsa-Magellan Midstream Partners LP (MMP) reported a $1.3 million decrease in ammonia pipeline operating margins in the third quarter. The company cited higher expenses during the quarter. Operating margins were a $646,000 loss on sales of $3.5 million, versus a year-ago positive margin of $646,000 and sales of $3.7 million. Nine-month margins were in the plus column at $2.3 million on sales of $11.7 million, versus the year-ago $3.1 million and $10 million, respectively. Actual ammonia volumes on the system were up both in the quarter and year-to-date. Third-quarter volumes moved up to 159,000 st from the year-ago 149,000 st, while YTD was 537,000 st, up from 487,000 st. Company-wide, third-quarter net earnings were down, at $30.6 million on sales of $316.6 million, versus the year-ago $40.7 million and $314 million, respectively. Nine-month income was up, at $136.3 million on sales of $907.4 million, versus the year-ago $122 million and $828 million, respectively.