Samuel “Sam” Marshall
Geologist · Co-founder · 1899-1967
Sam’s geological work in the Permian Basin preceded the 1928 partnership. His subsurface judgment became one of the company’s defining strengths.
A century beneath the surface.
Based in Midland, Texas, Marshall & Winston is an independent oil and gas operator rooted in the Permian Basin since its founding in 1928.
The company began when geologist Samuel “Sam” Marshall and capital partner Donald “Don” Winston joined complementary strengths to pursue opportunity in a developing region. From mineral interests and royalty holdings to active drilling, the record has been shaped by geology, patience, and considered risk.
Read the record
From the founders’ first meeting in 1926 toward the upcoming 2028 centennial, the record is a succession of decisions, discoveries, and people willing to look deeper.
The partnership begins
Sam Marshall meets Don Winston in Los Angeles. Sam brings petroleum geology. Don supplies capital and a willingness to take considered risk.
Marshall & Winston is formed
The partnership acquires interests across West Texas and southeastern New Mexico, laying the foundation for the company’s long operating record.
Looking deeper
A well drilled to 8,000 feet finds Glorietta and Clearfork production, helping define the shape of the Central Basin Platform.
A new generation joins
Trained as a geologist, Bill joins Marshall & Winston and helps discover the Portal Field.
A new chapter
Following Sam Marshall’s death, Bill Marshall is elected president and chief executive officer and leads an expansion into more active drilling.
A shared honor
Sam Marshall, Bill Marshall, and Don Winston are inducted together into the Petroleum Hall of Fame.
The upcoming centennial
In 2028, Marshall & Winston will mark its upcoming centennial, one hundred years after Sam Marshall and Don Winston formed the company.
The people behind the record brought geology, capital, judgment, and the patience to think in decades.
Geologist · Co-founder · 1899-1967
Sam’s geological work in the Permian Basin preceded the 1928 partnership. His subsurface judgment became one of the company’s defining strengths.
Capital partner · Co-founder
Don supplied capital and a willingness to take considered risk. His partnership with Sam gave the company its enduring balance of conviction and discipline.
Geologist · Elected president and CEO in 1967 · 1929-2013
Under Bill’s presidency, Marshall & Winston made discoveries including the Blackard-Clinta complex and Lonesome Dove Field II, and expanded the Francis Hill gas field.
Member of the Winston family · Chairman emeritus
As a member of the Winston family, Steve carried its stewardship into a later generation, serving as chairman of Marshall & Winston and now as chairman emeritus.
Sam Marshall’s grandson · Third-generation stewardship
Billy, the son of Bill Marshall and grandson of founder Sam Marshall, represents the third generation of Marshall family stewardship and has managed the company’s oil and gas exploration business.
Prototype archive note: publication rights for museum-sourced portraits must be confirmed before public launch.
Founded in 1928, Marshall & Winston will mark its upcoming centennial in 2028. Its record is measured in formations understood, relationships kept, and decisions made with the long view in mind.
For landowner, mineral, operating, and business inquiries, contact the Marshall & Winston office in Midland, Texas.