Behind declines for shares of Walgreens Boots and Chevron, the Dow Jones Industrial Average is declining Thursday morning. The Dow (DJIA) was most recently trading 184 points (0.7%) lower, as shares of Walgreens Boots (WBA) and Chevron (CVX) have contributed to the blue-chip gauge’s intraday decline. Walgreens Boots’s shares have fallen $0.89, or 2.6%, while those of Chevron have fallen $1.41, or 2.1%, combining for an approximately 15-point drag on the Dow. Merck (MRK) UnitedHealth (UNH) and Johnson & Johnson (JNJ) are also contributing significantly to the decline. A $1 move in any of the Dow’s 30 components results in a 6.58-point swing.