Oil & Gas Stock Roundup: Shell's Olefins Unit Start-Up, SemGroup's JV & More - Zacks.com
Oil & Gas Stock Roundup: Shell's Olefins Unit Start-Up, SemGroup's JV & More Zacks.comRoyal Dutch Shell (RDS.A) started up its fourth linear alpha olefins unit at its Geismar chemicals plant, while SemGroup (SEMG) and KKR teamed up for a ...