Following the formal establishment of the California Arabian Standard Oil Company (CASOC) in 1933, an agreement solidified by a 60-year concession granted by King Abdulaziz Ibn Saud, the early operational phase was characterized by formidable logistical challenges and persistent exploration efforts. The initial concession, signed on May 29, 1933, covered an extensive area of approximately 360,000 square miles, in exchange for an immediate loan of £35,000 and subsequent annual payments, along with royalties on future oil production. The initial team, composed primarily of American geologists and engineers, arrived in the Kingdom with the monumental task of identifying commercially viable oil deposits in an undeveloped region. Saudi Arabia at the time lacked significant infrastructure, with limited roads, ports, or modern amenities, requiring CASOC to become almost entirely self-sufficient in its early years. Dammam, a small coastal village in the Eastern Province, was selected as the base of operations due to its proximity to promising geological structures, particularly identified anticlinal formations and salt domes, and critically, access to the Arabian Gulf for supply lines. The first drill rig, imported with great difficulty across vast distances and challenging terrain, was erected at a site designated as Dammam No. 1 in 1935. The efforts to establish a functional drilling operation involved creating infrastructure from scratch, including basic port facilities, housing for personnel to withstand the extreme desert climate, and rudimentary transportation networks across the arid landscape using early trucks and traditional methods.
Early drilling attempts, however, were not immediately fruitful. Dammam No. 1, and subsequent wells up to Dammam No. 6, yielded only minor shows of oil or gas, or water, causing considerable financial strain and raising questions about the commercial viability of the venture. SoCal had committed substantial capital to the project, investing several million dollars by 1937—a significant sum during the Great Depression, when global oil markets were characterized by oversupply and low prices, often below $1 per barrel for US crude. This lack of a major discovery threatened to undermine confidence in the concession. Despite these setbacks, the geologists and engineers on the ground, notably Max Steineke and J.W. Hoover, maintained their conviction, interpreting the geological data to suggest that deeper formations, specifically the Permian Arab Zone, held greater promise. The initial wells had explored shallower horizons, but geological models, informed by early, albeit rudimentary, seismic surveys, indicated substantial reserves beneath. This period tested the resilience of both the company and its Saudi partners, highlighting the inherent risks in frontier oil exploration and the unwavering belief in the region’s potential.
Recognizing the immense capital requirements and the strategic importance of the venture, SoCal sought to share the financial burden and accelerate exploration efforts. In 1936, The Texas Company (Texaco) acquired a 50% interest in CASOC, providing a much-needed infusion of capital and additional technical expertise. This partnership diversified the ownership structure, sharing the exploration risk, and strengthened the company's financial base, allowing for continued investment in more advanced drilling technologies and expanded exploration programs. Texaco brought not only financial resources but also extensive refining and marketing networks, particularly in Europe and the US East Coast, which SoCal lacked for Middle Eastern crude, thus enhancing the future commercialization prospects. The collaboration between SoCal and Texaco underscored the scale of the undertaking and the shared belief in the region’s potential, even in the face of initial disappointments, positioning CASOC to compete in a global oil landscape dominated by well-established players.
The persistent efforts eventually led to a breakthrough. On March 4, 1938, after years of diligent drilling and increasing depth, Dammam No. 7 struck oil in significant quantities, flowing at a remarkable initial rate of 1,585 barrels per day from the Arab Zone formation, at a depth of 4,727 feet. This discovery unequivocally confirmed the presence of a major oil field and validated the earlier geological assessments that deeper reservoirs held greater potential. The Arab Zone proved to be a prolific carbonate reservoir with excellent porosity and permeability, capable of sustaining high flow rates. The Dammam No. 7 discovery marked a pivotal moment, transforming the perception of Saudi Arabia from a potentially oil-rich region to a proven producer. It was the first commercially significant crude oil discovery in Saudi Arabia, establishing the foundation for future development and triggering immediate communication to company headquarters and King Abdulaziz, confirming the success.
Following the Dammam No. 7 success, the company rapidly transitioned from pure exploration to development and production. The focus shifted to drilling additional wells in the Dammam field, such as Dammam No. 8 and No. 9, to assess its full extent and to establish crude oil export capabilities. The initial product, high-quality Arabian Light crude, characterized by its medium API gravity (around 34 degrees) and low sulfur content, was immediately sought after by global markets for its desirable refining characteristics. The construction of a 42-mile pipeline to the coast at Ras Tanura and the development of rudimentary export facilities, including storage tanks with an initial capacity of 80,000 barrels and a loading jetty capable of accommodating tankers, commenced with urgency. This period saw the rapid expansion of operations, requiring a larger workforce and the establishment of more permanent infrastructure, including purpose-built employee housing, medical facilities, and administrative offices to support the growing enterprise.
Building the team involved a significant recruitment effort, bringing in more American and international specialists, alongside the crucial development of a local Saudi workforce. By 1939, the total workforce had grown to several hundred, including approximately 200-300 American expatriates and a rapidly increasing number of Saudi nationals, potentially exceeding 1,000 as infrastructure projects scaled. From the outset, CASOC implemented training programs to equip Saudi nationals with the skills necessary for various operational roles, such as rig workers, mechanics, welders, and administrative assistants, laying the groundwork for a long-term human capital development strategy. This early emphasis on local talent integration, which was somewhat unique compared to other international oil concessionaires of the era who often relied predominantly on imported labor, contributed to a distinct company culture that blended international expertise with local customs and traditions, fostering a sense of shared purpose in developing the Kingdom’s resources.
By 1939, just over a year after the Dammam No. 7 discovery, the first tanker, the SS D. G. Scofield, owned by SoCal, was loaded with 103,000 barrels of Saudi crude oil at Ras Tanura and sailed for international markets. This event solidified Saudi Arabia’s entry into the global oil trade, marking a major milestone for both the company and the Kingdom. The commercial viability demonstrated by Dammam No. 7 and the subsequent export of oil indicated that CASOC had successfully achieved initial product-market fit. The company had proven its ability to not only locate but also to extract and transport oil effectively, establishing a clear path for future expansion and solidifying its position as a key player in the nascent Saudi oil industry. This flow of oil provided the Kingdom with its first direct and substantial revenue stream, laying the economic foundation for its future modernization, even as the world teetered on the brink of World War II, making secure access to such a vital resource increasingly strategic.