MOSCOW (Reuters) – Shares in Russian energy giants Rosneft and Gazprom followed divergent courses on Friday as investors responded to the two companies’ opposing dividend decisions, while the rouble fell sharply from seven-year highs hit this week. At 0716 GMT, gas giant Gazprom’s shares were down 6.9%, extending heavy losses from the previous session after it decided not to pay dividends on last year’s results for the first time in more than two decades. Meanwhile, shares in oil major Rosneft, which approved 2021 dividend payments after Thursday’s closing bell, were gaining ground, up 4.6%. “…