[Hat Tip Mailroom] This is a very interesting little bureaucratic energy issue with big downstream ramifications.
Almost every transportation and manufacturing company uses the U.S. Energy Information Administration (EIA) “weekly publication of average diesel prices” in order to calculate shipping costs. According to people in the industry, “this national average is what almost every trucking and logistics company bases their fuel surcharges on.”
However, on June 13th the U.S. Department of Energy, Energy Information Administration, stopped reporting the average weekly diesel price. For almost a month companies have been using an outdated average price in order to calculate shipping costs and fuel surcharges. [See Screengrab]

Originally the EIA said, “We are implementing new methodology to estimate weekly on-highway diesel fuel prices. On June 13, we started conducting the On-Highway Diesel Fuel Price Survey using new statistical methodologies.” {LINK} However, the EIA has not updated anything since that announcement.
As a result, all of the transportation charges and fuel surcharges have been underestimated and priced for almost a full month. The political motive for this move is transparent, it stops higher diesel prices from being passed along in the supply chain… which gives an artificial pause on inflation that comes as an outcome of higher diesel transportation costs (specifically trucking). As explained to CTH:
In a very weird economic scenario, the Biden administration actually benefits from a port stoppage as imports are a deduction to GDP and the U.S. economy is presumably on the “zero” growth bubble. If the Bureau of Economic Analysis (BEA) calculates a negative GDP in the second quarter (not likely for political reasons), the Biden administration would officially be responsible for a recession. [Any delay in import quantification helps shape the economic statistics; however, Q2 ended yesterday.]
The demand side argument/justification for inflation was always false. However, it was/is still the claim made by members of the Biden administration and almost every board member of the federal reserve.
