Further slump in oil prices might roll back the company's major petro-chemical projects and depress top- and bottom-line performances in the quarters ahead. Moreover, we believe that other headwinds such as a stronger U.S. dollar, stiff industry rivalry or sudden input price inflation might dent the company's near-term top- and bottom-line performances. On Jul 18, Zacks Investment Research downgraded MRC Global Inc.MRC to a Zacks Rank #3 (Hold) from a Zacks Rank #2 (Buy).