Calumet Specialty Products Partners (CLMT) turned fractionally lower again this afternoon, giving back a more than 1% spike after the company said the US Securities and Exchange Commission has completed its investigation of certain disclosure and internal controls at the specialty hydrocarbon products company and agreed to pay a $250,000 fine for issuing an inaccurate and misleading earnings release nearly two years ago.

The agency began the probe after the company was seven weeks late filing its Q3 financial results in 2017 and disclosed two material weaknesses in its internal controls. The weaknesses continued through March 2018, the SEC said.