FRANKFURT (Reuters) – Germany’s gas storage facilities were filled slightly overnight despite a major drop in Russian deliveries, the country’s network regulator said on Saturday, but it confirmed the situation around gas supplies remained “tense”. Gas storage levels stood at 56.67% on Saturday, up slightly from the 56.29% on Friday, Germany’s network regulator Bundesnetzagentur said in its daily gas supply report, reiterating its plea to save as much gas as possible. Germany’s government has urged companies and households to bring down gas consumption to a bare minimum, under pressure to ensu…