Markets make small gains with help from energy, chemical company results

ADVANCE FOR WEEKEND EDITIONS, JULY 27-28 - FILE - This Nov. 12, 2000 file photo shows Minnesota Vikings offensive tackle Korey Stringer leaving the field in Minneapolis. Stringer died of heat stroke during the Vikings' training camp 12 years ago. Since then, such incidents have become virtually nonexistent in the NFL. Players have learned there is no courage in challenging the energy-sapping heat and humidity of summer. (AP Photo/File,Tom Olmscheid, File)
ADVANCE FOR WEEKEND EDITIONS, JULY 27-28 - FILE - This Nov. 12, 2000 file photo shows Minnesota Vikings offensive tackle Korey Stringer leaving the field in Minneapolis. Stringer died of heat stroke during the Vikings' training camp 12 years ago. Since then, such incidents have become virtually nonexistent in the NFL. Players have learned there is no courage in challenging the energy-sapping heat and humidity of summer. (AP Photo/File,Tom Olmscheid, File)
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