Actual future results, including future energy supply, demand and mix; the future effectiveness of safety, health, environmental and other sustainability risk and impact management processes; efficiency gains; and the impact of future technologies could differ materially due to factors including changes in supply and demand for oil and gas and other factors affecting long-term oil and gas prices; political and regulatory factors including the impact of international accords and treaties; changes in consumer preferences; actions of competitors including the development of competing technologies; the outcome of current and future research efforts; technical and operating factors; and other factors discussed under the heading Factors Affecting Future Results available through the Investors page of our website.