Behind losses for shares of Chevron and Dow Inc., the Dow Jones Industrial Average is falling Tuesday morning. Shares of Chevron CVX and Dow Inc. DOW are contributing to the blue-chip gauge’s intraday decline, as the Dow DJIA was most recently trading 152 points (0.6%) lower. Chevron’s shares are off $2.09, or 2.8%, while those of Dow Inc. are down $0.90 (1.9%), combining for an approximately 20-point drag on the Dow. Travelers TRV, Boeing BA, and Walt Disney DIS are also contributing significantly to the decline. A $1 move in any of the benchmark’s 30 components results in a 6.58-point swing.