BP is exploring the sale of up to a 49% stake in its US natural gas pipeline system, according to four people familiar with the matter. The move, which could fetch up to $3 billion, is part of CEO Murray Auchincloss’s broader strategy to alleviate the company’s debt burden.

BP’s pipeline network spans approximately 1,500 miles across the US, transporting 1.1 million barrels per day of various fuels. The company has been actively seeking ways to streamline operations and improve its financial performance, including through asset sales.

BP’s net debt increased to $24.3 billion by the end of September, up from $22.3 billion a year earlier. The company has struggled to meet its asset sale targets, which has contributed to the higher debt levels.

In addition to the pipeline stake, BP is also considering the sale of its Lightsource bp solar venture, its onshore wind division in the US, and some of its offshore wind projects.

Auchincloss is expected to provide more details on BP’s strategy in February amid the increasing consolidation in the US oil and gas pipeline sector as challenges in obtaining permits for new pipelines have made existing infrastructure more valuable.

Meanwhile, BP declined to comment on the potential sale.