BUZZ-Tenaris SA: Morgan Stanley upgrade
** Luxembourg-based steel pipe maker's U.S.-listed shares up 1.3 pct at $45.20 premarket
** Morgan Stanley upgrades to "overweight" from "equal-weight" and raises price target to $60 from $47
** "Tenaris offers an out-of-consensus play on increased U.S. shale activity and LatAm growth driven by energy reforms in Mexico and shale boom in Argentina," analysts write in a note
** Of the 11 analysts, two rate Tenaris "strong buy", three "buy" and eight "hold", according to Thomson Reuters data
** Median price target is $50, up $3 from a month ago
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