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NEW YORK ( TheStreet) -- Semgroup (NYSE: SEMG) hit a new 52-week high Wednesday as it is currently trading at $30.56, above its previous 52-week high of $30.13 with 24,369 shares traded as of 9:35 a.m. ET. Average volume has been 299,700 shares over the past 30 days. Semgroup has a market cap of $1.23 billion and is part of the basic materials sector and energy industry. Shares are up 14.7% year to date as of the close of trading on Tuesday. SemGroup Corporation, through its subsidiaries, engages in moving energy products from wellheads to the wholesale marketplace through a network of pipelines, terminals, and storage tanks in the United States, Canada, Mexico, and the United Kingdom.