Halliburton Co.’s return to profitability in North America wasn’t enough to satisfy investors hungry for faster growth in its biggest market. The world’s top provider of fracking services failed to keep up with the rapid growth in the shale patch last quarter. North America’s drilling revival is leading the oil industry’s recovery, with shale explorers seen increasing spending four times faster than the global average this year. While the number of rigs drilling for oil and gas in the U.S. and Canada has more than doubled since May, and grew 19 percent in the last three months of the year, Halliburton’s revenue in the region rose just 9 percent from the previous quarter, according to an earnings report Monday. The shares fell the most in more than four months. “We expected them to grow a little bit more with the rig count,” Rob Desai, an analyst at Edward Jones […]