Pioneer Natural Resources (PXD) is up $2.98 to $105.64 and has now rallied 8.4 percent this week. One player in the options market seems to be anticipating additional gains in the Irving, TX oil and gas company and sold 5,000 Feb 95 puts on the stock to buy 2,500 Feb 105 – 115 call spreads, paying $1.55 for the package. The position looks opening and tied to 168K shares at $104.68. Earnings due out Feb 6 and the company presents at a Credit Suisse conference on Feb 7.