Companies that aren't growing their earnings can still be valuable, but it is even more important to assess the sustainability of the dividend if it looks like the company will struggle to grow. If earnings decline and the company is forced to cut its dividend, investors could watch the value of their investment go up in smoke. With that in mind, we're not enthused to see that PETRONAS Gas Berhad's earnings per share have remained effectively flat over the past five years. It's better than seeing them drop, certainly, but over the long term, all of the best dividend stocks are able to meaningfully grow their earnings per share.