Updated from 3:59 p.m. EDTShares of major oil companies were mostly positive on Tuesday, as the overall stock market moved higher. Light, sweet crude oil futures for May delivery finished down $1.27, or 2.6%, to $48.39 a barrel on the New York Mercantile Exchange. Crude inventories rose more than expected last week, and gasoline stockpiles increased despite analysts' predictions for a steep drop, as demand for motor fuel fell slightly, according to government data released Wednesday. For the week ended March 27, crude inventories rose by 2.8 million barrels, or 0.8 percent, to 359.4 million barrels, which is 15.5% above year-ago levels, the Energy Department's Energy Information Administration said in its weekly report. Analysts expected a boost of 3.2 million barrels, according to a survey by Platts, the energy information arm of McGraw-Hill Cos. The Amex Oil index finished at 867.46, up 16.39 or 1.93%. ConocoPhillips ( COP) closed at $39.80, up 64 cents or 1.63%. E.L. (Gene) Batchelder, currently senior vice president, services, and chief information officer, will become senior vice president and chief administrative officer. Batchelder will be responsible for the strategy, leverage and oversight of global shared services, human resources, facilities, information technology, security, aviation, executive services, and corporate affairs, which includes investor relations, corporate communications and contributions. Chevron ( CVX) was up just under 1%, or 65 cents to $67.89. BP ( BP) closed at $40.42, up 32 cents or 0.8%. Royal Dutch Shell ( RDS.B) closed at $44.09, up 48 cents or 1.10%. Exxon Mobil ( XOM) shares finished at $69.23, up $1.13 or 1.66%. Gasoline inventories rose by 2.2 million barrels, or 1%, to 216.8 million barrels, which is 1% above year-ago levels. Analysts expected stockpiles to fall by 1.8 million barrels. Demand for gasoline over the four weeks ended March 27 was 0.2% lower than a year earlier, averaging 9 million barrels a day.