It appears that Heebner is bullish about the oil services industry.
CGM started new positions in three oil service companies including:
Schlumberger (SLB) 4.12% of portfolio
Schlumberger Limited and its subsidiaries supply technology, integrated project management, and information solutions to the oil and gas industry worldwide. The company operates in two segments, Oilfield Services and WesternGeco. (From Yahoo)
Halliburton (HAL) 3.17% of portfolio
Halliburton Company provides various products and services to the energy industry for the exploration, development, and production of oil and natural gas worldwide.
National Oilwell Varco (NOV) 2.44% of portfolio
National Oilwell Varco, Inc. designs, constructs, manufactures, and sells systems, components, and products used in oil and gas drilling and production; provides oilfield services and supplies; and distributes products, and provides supply chain integration services to the upstream oil and gas industry worldwide.
These three positions were most likely stellar positions for Heebner as they rocketed up 40-60% in the fourth quarter.