This issue brings together five articles on the modern petroleum industry. Two cover the growth of the industry in the early twentieth century: Michael Adamson's study of the development of California's coastal oil region by independent oilman Ralph Lloyd; and the study by Lisa Bud-Frierman, Andrew Godley, and Judith Wale of the British entrepreneur Weetman Pearson's operations in Mexico. Two articles treat the post–World War II period: Nathan Citano looks at the budding interests of U.S. oilmen in the Middle East and Daniele Pozzi traces the transformation of the Italian company ENI into an international oil firm. Finally, Keetie Sluyterman examines the ways in which Royal Dutch Shell handled environmental issues from its inception in 1907 to the present. The issue also contains a survey of recent historiography on the oil industry in Latin America by Marcelo Bucheli and a review essay by James Bamberg on a recent four-volume history of Royal Dutch Shell.

The intricate interplay among environmental pressure groups, oil companies, and governments is revealed from the perspective of the Anglo-Dutch company Royal Dutch Shell. An examination of three environmental issues demonstrates the company's awareness of such problems and describes its efforts to contain potential damage to the degree permitted by existing technological and economic constraints. The industry view is that government measures should create a level playing field and should be effective and economically feasible. While pressure groups are skilled at calling attention to environmental problems, industry highlights the tradeoffs between different societal aims that are entailed in tackling these problems. Governments are left to fi nd the best ways to weigh conflicting interests.

The ways in which business–government relations influenced postwar liberalism in the American encounter with the Middle East are examined through the use of group biography. The linked careers of five internationalist oilmen who helped to formulate Harry S. Truman's domestic and foreign policies are tracked during and after World War II. Partly through the efforts of these influential men, the Middle East's vast oil resources became an important component of controversies about the direction of the New Deal. One conclusion to emerge from the study is that instead of simply studying liberal ideals in order to understand the American impulse to reform the world, historians also need to consider how global factors intruded into domestic reform debates.

The entrepreneurial activity of Enrico Mattei, who headed the Italian state oil company AGIP (later ENI) from 1945 to 1962, laid the groundwork for the company's growth during the 1950s and 1960s. Mattei relied on a group of knowledgeable specialists, who were equipped with a complex set of capabilities that enabled them to oversee and perform operational tasks. The task of adapting that set of capabilities began in the latter half of the 1950s, when the firm underwent a transition from its main business of producing natural gas, which it had developed immediately after World War II, to prospecting for oil abroad.

British overseas investment was a powerful force behind rapid global integration before World War I. Close to half of the total was in the form of foreign direct investment. Weetman Pearson was among the most successful of Britain's overseas-based entrepreneurs of the period. By 1919, the Pearson group of companies had become one of Britain's most valuable industrial enterprises, having diversified from international contracting into the Mexican oil industry. The Pearson group highlights the technical competence of British entrepreneurs in managing large, complex infrastructure projects, capable of navigating their way through various political systems, and adept at turning to whichever organizational form best suited their business interests. These characteristics were far removed from the now outdated stereotype of the incompetent late Victorian entrepreneur.

Independents, or nonintegrated companies, played a significant role in finding and producing crude oil in California, just as they had in Texas. They were able to do so because the resources of majors, or integrated firms, were not decisive in the search for oil. As both majors and independents increased in number, the factors of risk and uncertainty persuaded independents and majors to cooperate with each other. The case of Ralph B. Lloyd demonstrates the argument. Lloyd was a forceful individual who used his preeminent leasing position to shape the development of the Ventura Avenue field—the largest in the coastal region—through symbiotic relations with Shell and Associated. Lloyd's role is not captured in the data that scholars often use to demonstrate the dominance of m ajors in the California oil industry.

The historiography of Latin America's oil industry has evolved since the period between the 1960s and the 1980s, when most scholars were focusing on the rise of nationalism in reaction to the multinationals' control of the oil sector. Beginning in the 1990s, the emergence of new methodologies enabled historians to study other aspects of the industry, such as its environmental and cultural impact, local elites' role in its development, the industry's impact on the long-term development of Latin American countries, and the organizational evolution of state-owned oil companies. However, the literature continues to be dominated by studies of Mexico, while the subject of oil consumption is largely ignored.