Thank you, Will. Turning to the Refining segment. First quarter combined throughput was 181,000 barrels per day, reflecting winter seasonality and maintenance activities. In Hawaii, throughput was 79,000 barrels per day and production costs were $4.89 per barrel. The crude rate was reduced for 10 days in March as we resolved the filling issue in our crude vacuum power. We have restored operations and demonstrated a return to full crude capability.
For billings, first quarter throughput was 53,000 barrels per day despite seasonality, crude rates were elevated as we built inventory ahead of the second quarter turnaround. First quarter production costs were $12.44 per barrel, elevated by approximately $5 million due to increased electricity costs and pre-turnaround related OpEx.
Billings crude and reformer blocks have been in turnaround since early April. The turnaround has progressed to plan and is on schedule and on budget. We are currently in the beginning stages of start-up operations.
Shifting to Wyoming, Refinery availability has been excellent. Throughput was a first quarter record of 17,000 barrels per day and production costs were $7.86 per barrel. Finally, in Washington, first quarter throughput was 31,000 barrels per day and production costs were $6.07 per barrel, elevated by approximately $1 million due to a 15-day planned March maintenance event.
The refineries back to full rates and operating well in the second quarter. Looking ahead, each of our assets are positioned to optimize throughput heading into the summer season. For the second quarter, we expect Hawaii throughput between 81,000 and 84,000 barrels per day, Wyoming between 18,000 and 20,000 barrels per day, Washington between 39,000 and 41,000 barrels per day and Billings between 34,000 and 38,000 barrels per day, reflecting the second quarter turnaround activities.
I'll now turn the call over to Shawn to cover our financial results.