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The report assesses the potential for reducing greenhouse gas (GHG) emissions, NOx, and fuel consumption in California's heavy-duty truck fleet through retrofit technologies. It evaluates six technology packages across different vehicle types and duty cycles, concluding that a combination of high-technology retrofits for new vehicles and moderate-technology retrofits for in-use vehicles is the most cost-effective strategy. The analysis suggests that focusing on tractor-trailers and straight trucks over 14,000 pounds could reduce state heavy-duty fleet GHG emissions by 14.9 to 22.2 million metric tons of CO2-equivalent between 2010 and 2020.

The report proposes a two-step strategy to improve the efficiency of Class-8 tractor-trailers. Step 1 focuses on technological improvements in aerodynamics, tire rolling resistance, and powertrain efficiency, which could increase fuel economy from 6.5 to 12.3 mpg. Step 2 examines the use of 'turnpike doubles'—long combination vehicles (LCVs) with two 48-foot trailers and a gross vehicle weight rating (GVWR) of 120,000 pounds—to increase freight productivity. Together, these measures could raise ton-mile efficiency by a factor of approximately 2.5, potentially saving 4 billion gallons of diesel fuel and 45 million tonnes of CO2 emissions annually for the U.S. fleet.

The document outlines technical options for reducing fuel consumption in heavy-duty trucks, focusing on aerodynamic enhancements for tractors and trailers and the reduction of rolling resistance through tire technology and inflation systems.

A joint investigation by Global Witness and Radio Free Europe (RFE) identifies a supply chain connecting Wintershall Dea's gas condensate production in Western Siberia to the Salavat refinery, which in turn supplies diesel to companies with Russian military contracts. While the report notes it is not possible to determine if a specific barrel of diesel contains Wintershall's condensate, it highlights that the refinery's output reaches suppliers for the Federal Guard Service (FSO) and other military units. The report criticizes Wintershall for its continued shareholding in these ventures and its pursuit of German government compensation despite these connections.

Global Witness traced the journey of Russian oil from the port of Primorsk to the UK via India, highlighting the use of a 'shadow fleet' of aging tankers and a refining loophole that allows Russian crude to be imported into the UK as refined products. The report identifies the role of Gatik Ship Management and the St Kitts and Nevis ship registry in facilitating this trade, and notes that refineries in Vadinar and Jamnagar process Russian crude for re-export to Western markets, including purchases by Shell and BP.

In November 2014, Indonesia increased gasoline prices by 31% and diesel by 36%, eventually removing gasoline subsidies and introducing a fixed-price subsidy for diesel. The reform was driven by fiscal burdens, the election of President Joko Widodo, and a decline in world oil prices. While the move generated estimated savings of USD 15.6 billion in 2015—which were reinvested in ministries, infrastructure, and regional transfers—the document notes a 'missed opportunity' to invest in sustainable energy. By early 2018, the government's commitment to price stability effectively reintroduced subsidies, with estimated costs of USD 1.7 billion for the calendar year.