Oilfield service giant Halliburton Co. (HAL) continues to trend upward within the Green Favored Zone of the SIA S&P 500 Index Report. The shares finished yesterday in 60th place, up 12 spots on the day and up 129 spots over a month. Back in autumn, shares snapped a downtrend line to signal the start of a new recovery trend, then consolidated for a few months in the $17.25 to $22.25 area. Yesterday, a breakout to the upside, completing a bullish Ascending Triangle base signaled the start of a new upleg.