(Sierra, 4.Dec.2018) — Sierra Oil & Gas signed an agreement that will result in Sierra's business being integrated with Deutsche Erdoel AG (DEA AG), an international independent exploration and production...
(Sierra Oil & Gas, 4.Dec.2018) — Sierra Oil & Gas signed an agreement that will result in Sierra's business being integrated with Deutsche Erdoel AG (DEA AG), an international independent...
(Sierra, 18.Sep.2014) — Sierra Oil & Gas S. de R.L. de C.V., Mexico's first independent exploration and production company, today announces that it has secured equity commitments of US$525 million....