Regulatory Commission of Alaska Issues Revised Tariff for TAPS Quality Bank

The Regulatory Commission of Alaska has released a revised tariff for the TAPS Quality Bank, effective July 1, 2025. The revision updates ExxonMobil Pipeline Company's (EMPCo) Quality Bank tariff under Federal Energy Regulatory Commission (FERC) No. 404.26.0, which cancels FERC No. 404.25.0 issued on May 30, 2025. The revised tariff includes changes to the Gravity Differential Value and updates to the quality bank methodology for the Trans-Alaska Pipeline System (TAPS).

Key Takeaways:

• The revised tariff updates EMPCo's Quality Bank tariff under FERC No. 404.26.0, which is effective on July 1, 2025.
• The tariff revision includes changes to the Gravity Differential Value, increasing the per barrel value to $0.0350 for each one-tenth degree API Gravity.
• The Quality Bank Administrator has removed references to discontinued postings for California crude oil, including Chevron Crude Oil Marketing, ExxonMobil Corporation, and STUSCO.
• The Quality Bank Administrator will continue to use the posting of Union 76 for California crude oil.
• The revised tariff will impact TAPS operations, affecting the quality bank methodology and associated pricing.
• The revision is made to comply with FERC orders and Commission decisions issued in 2005, 2006, and 2023.

Statistics:

• The revised tariff updates FERC No. 404.26.0, which cancels FERC No. 404.25.0 issued on May 30, 2025.
• The Gravity Differential Value will increase by $0.0050 per barrel for each one-tenth degree API Gravity, effective July 1, 2025.
• The revised tariff impacts the Trans-Alaska Pipeline System (TAPS), which transports oil from Prudhoe Bay to Valdez Terminal.

Sources:

• Regulatory Commission of Alaska 701 West 8th Avenue, Suite 300 Anchorage, Alaska 99501
• ExxonMobil Pipeline Company Tariff Advice No. TL188-304
• Federal Energy Regulatory Commission (FERC) No. 404.26.0
• FERC No. 404.25.0 issued May 30, 2025