Shares of Caterpillar and Chevron are posting strong returns Wednesday morning, propelling the Dow Jones Industrial Average into positive territory. Shares of Caterpillar and Chevron are contributing to the blue-chip gauge’s intraday rally, as the Dow is trading 86 points higher (0.3%). Caterpillar’s shares are up $5.62 (2.5%) while those of Chevron are up $3.19, or 2.1%, combining for an approximately 58-point bump for the Dow. Dow 3M and Home Depot are also contributing significantly to the gain. A $1 move in any one of the 30 components of the Dow results in a 6.59-point swing.