Martin Midstream Partners said it terminated an agreement to be acquired by Martin Resource Management, a minority shareholder.
The Dow Jones Industrial Average edged up 27 points, or less than 0.1% to about 43,324. The S&P 500 added 3.7 points, or 0.1% to 6,043. The Nasdaq Composite rose 27 points, or 0.1% to 20,059.
Investors pared losses to a minimum Thursday, as the three major indexes ended up nearly break-even at the market close.