BP loses 33 cents to $42.02 and one strategist bought 10000 Apr 44 calls on the oil giant for $2.65 per contract. It might close, as open interest is 29,973. The same strategist also sold 8,000 May 55 calls on Total SA (TOT) at $3.10, which might also be closing, as open interest is 17,030. Or this might be a new pairs trade and adds to similar positions opened Friday, when 8,400 BP Apr 44 calls traded at the $2.89 ask price and 7,200 TOT May 55 calls traded on the $3.30 Bid. TOT is up 13 cents to $52.72 today and the pairs trade might be a bet that, while BP will move beyond $44 through the Apr expiration, TOT won’t rally beyond $55 through mid-May 2012.