In late 1999, the Federal Government of Nigeria issued new guidelines for the development of proven underdeveloped fields in the country. To achieve this, the Government recovered twenty-nine (29) abandoned and/or under-exploited fields from the major operators in Nigeria and their production rights were re-allocated through farm-in agreements.

As a result, in 2002 the Government offered twenty-four (24) marginal field packages to Nigerian upstream oil companies.

Midwestern was one of more than thirty (30) indigenous upstream entrepreneurs that were awarded these marginal fields.

In 2003, Midwestern Oil & Gas Company Limited was awarded 70% interest in Umusadege Field located in PML 22 (formerly OML 56) which is situated in the northern area of Delta State, Nigeria. 2005.

Midwestern acquired Umugini Pipeline Infrastructure Limited (UPIL), a pipeline company which constructed a 51.4km pipeline from Umusadege to Eriemu for injecting crude into the Trans-Forcados Pipeline. The UPIL pipeline has a design capacity of 82,500bbls per day and was commissioned in 2014

Midwestern acquired an interest in OML 18 (Eroton E & P Company Ltd), one of the divested assets of Shell Petroleum Development Company Limited in 2015. The Company achieved 10 million Man-Hours LTI-Free operations in 2017. Midwestern has also received several awards and recognitions by notable national and international bodies for achievements in HSE.