(Read More: See the Day's Top Percentage Winners & Losers)
Chevron - Chevron has completed repairs at its Richmond, Calif., refinery that was damaged in a fire last year. The facility still needs regulatory approval to resume production, which is seen coming by the end of June.
Southwest Airlines - The airline has obtained a new $1 billion revolving credit line, replacing an $800 million line that was set to expire in April 2016.
UnitedHealth Group - UnitedHealth unit Health Plan of Nevada has been found responsible by a jury in a case involving members who contracted hepatitis C. The plaintiffs in the case have been awarded $24 million in compensatory damages, with punitive damages still to be determined.
Walt Disney - Disney is set to begin an undetermined number of layoffs at its consumer products and studio units, according to sources.
Apple - Apple will sign a music streaming deal with Warner and Universal Music within a week, according to a CNET report.
Kimberly-Clark - BMO Capital has downgraded the consumer products maker's stock to "underperform" from "market perform."
Hanesbrands - The clothing maker has initiated a quarterly dividend of $0.20 per share, putting the yield at 1.8 percent at the stock's current price.
WD-40 - The maker of lubricants and cleaning products reported quarterly profit of $0.66 per share for its fiscal second quarter, 10 cents above estimates. It also raised its profit outlook for the year, despite weaker sales in the Americas and higher expenses. WD-40 is seeing improved results in the Europe and Asia-Pacific regions.
Exide Technologies - The battery manufacturer has retained Lazard to review options for maximizing shareholder value. It did not say what specific alternatives it might be considering.
Valero Energy - The energy producer has approved the spin off of its retail business. Shares of subsidiary CST Brands are expected to be distributed to Valero shareholders on May 1.
Rosetta Stone - The maker of language education software is closing its well-known yellow retail kiosk locations, and will cut 245 employees. The move is part of a process in which Rosetta Stone will become an online operation.