Marathon Oil flies to DuPage County the day its Bakken legacy takes final shape

Marathon Oil flew from Lou Abbett Farms Airport in Michigan to DuPage Airport in Illinois on May 20, 2026, a 22-minute leg in the Gulfstream V bearing tail N540M. The flight, which topped out at 9,725 feet, arrived near Chicago just before sunset.

The trip arrives the same week Marathon Oil's former Bakken and Eagle Ford assets are fully rolled into ConocoPhillips's operations, more than 18 months after the $22.5 billion all-stock acquisition closed in November 2024. Per a ConocoPhillips investor update that quarter, the company is targeting over $1 billion in annual synergies from the merger. Marathon Oil's common stock ceased trading in late 2024, and its Houston headquarters now serves as a ConocoPhillips office [nasdaq.com](https://www.nasdaq.com/articles/conocophillips-acquires-marathon-oil-bring-over-1b-synergies).

The short hop from a rural Michigan airfield to DuPage suggests a day trip — likely a visit to legacy Marathon Oil leasehold in the Michigan Basin or a check-in with field personnel. Recent flights by the same aircraft show a loop around northern Indiana and southern Michigan earlier that same day, consistent with asset reviews in the region Marathon Oil spent decades developing before the acquisition [ogj.com](https://www.ogj.com/general-interest/companies/article/55054660/conocophillips-to-acquire-marathon-oil-in-225-billion-deal).