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Historical person

John Cadman Biography

Historical biography and chronological timeline for John Cadman, based on 34 World History Database records associated with Great Britain.

34 records1921โ€“193534 events13 places

Chronological biography

1921

Cadman Joins Anglo-Persian1921
Government / Liberal Party Government ยท Technical Adviser APOC ยท London

Leaves government service and joins Anglo-Persian as a technical adviser during a period of major expansion.

Standard Oil Compromise Negotiated1921
Government / Liberal Party Government ยท Technical Adviser APOC ยท United States of America

Helps negotiate a compromise with Standard Oil interests over participation in Persian petroleum ventures.

1922

Cadman Becomes Company Director1922
Government / Liberal Party Government ยท Company Director ยท London

Becomes a director as Anglo-Persian strengthens its technical and managerial organization.

1924

Cadman Reorganizes Persian Operations1924
Government / Liberal Party Government ยท Technical Adviser APOC ยท Persia

Undertakes consultations in Persia aimed at centralizing and clarifying management of Anglo-Persian's local operations.

1925

Cadman Becomes Vice-Chairman1925
Government / Liberal Party Government ยท Vice-Chairman APOC ยท London

Becomes vice-chairman and gains greater responsibility for Anglo-Persian strategy and organization.

1926

Masjed Soleyman Field Renamed1926
Government / Liberal Party Government ยท Vice-Chairman APOC ยท Masjed Soleyman

The original Maidan-i-Naftun producing field is formally identified as Masjed Soleyman.

Masjed Soleyman Production Exceeds Four Million Tons1926
Government / Liberal Party Government ยท Vice-Chairman APOC ยท Masjed Soleyman

Annual production at the original Persian field rises above four and a half million long tons.

1927

Naft-e Shah Oilfield Discovered1927
Government / Liberal Party Government ยท Chairman APOC ยท Kermanshah

Anglo-Persian discovers the Naft-e Shah field in western Persia, extending production beyond Masjed Soleyman.

Cadman Elected Anglo-Persian Chairman27 March 1927
Government / Liberal Party Government ยท Chairman APOC ยท London

Is elected chairman after returning from discussions with the newly crowned Reza Shah.

1928

Gachsaran Oilfield Discovered1928
Government / Liberal Party Government ยท Chairman APOC ยท Gachsaran

Anglo-Persian discovers oil at Gachsaran during its expanding exploration programme in southwestern Persia.

Haft Kel Oilfield Discovered1928
Government / Liberal Party Government ยท Chairman APOC ยท Haft Kel

Anglo-Persian discovers the large Haft Kel field, which becomes a major new source of Persian crude.

International Oil Coordination Agreement1928
Government / Liberal Party Government ยท Chairman APOC ยท Scotland

Joins other major oil companies in an international agreement intended to limit destructive competition and balance supply.

Consolidated Petroleum Company ArrangementNovember 1928
Government / Liberal Party Government ยท Chairman APOC ยท London

Anglo-Persian and Shell interests create a joint distribution structure for markets across Africa and the Middle East.

1929

Haft Kel Pipeline Completed1929
Government / Liberal Party Government ยท Chairman APOC ยท Ahvaz

A pipeline from Haft Kel is connected near Ahvaz to the main route carrying crude toward Abadan.

1930

Abadan Refinery Reaches 100000 Barrels Daily1930
Government / Liberal Party Government ยท Chairman APOC ยท Abadan

Abadan refinery capacity reaches roughly one hundred thousand barrels per day after sustained expansion.

Haft Kel Production Reaches 20000 Barrels Daily1930
Government / Liberal Party Government ยท Chairman APOC ยท Haft Kel

Haft Kel production reaches roughly twenty thousand barrels per day as the field becomes a major producer.

Persian Output Reaches 125000 Barrels Daily1930
Government / Liberal Party Government ยท Chairman APOC ยท Persia

Combined production from major Persian fields reaches roughly one hundred twenty-five thousand barrels per day.

Persian Workforce Exceeds 200001930
Government / Liberal Party Government ยท Chairman APOC ยท Persia

More than twenty thousand people are employed by Anglo-Persian in Persia as production and refining expand.

1931

Oil Royalty Revenue Collapse1931
Government / Liberal Party Government ยท Chairman APOC ยท London

Falling oil prices and the global depression sharply reduce royalties paid to the Persian government.

Persian Oil Production 5730498 Tons1931
Government / Liberal Party Government ยท Chairman APOC ยท Persia

Company production reaches 5,730,498 long tons despite the global petroleum market downturn.

1932

Persian Oil Production 6445808 Tons1932
Government / Liberal Party Government ยท Chairman APOC ยท Persia

Company output increases to 6,445,808 long tons while the concession dispute remains unresolved.

Oil Dispute Referred to League of NationsDecember 1932
Government / Liberal Party Government ยท Chairman APOC ยท Geneva

The British government refers the Anglo-Persian concession dispute with Persia to the League of Nations.

1933

Concession Area Reduced to 100000 Square Miles1933
Government / Liberal Party Government ยท Chairman APOC ยท Persia

Accepts a reduced concession area of one hundred thousand square miles under the 1933 settlement.

Concession Extended to 19931933
Government / Liberal Party Government ยท Chairman APOC ยท Persia

Secures a sixty-year concession running to 1993, extending company rights well beyond the original D'Arcy term.

Discounted Domestic Oil Sales Agreed1933
Government / Liberal Party Government ยท Chairman APOC ยท Persia

Agrees to sell petroleum for internal Persian consumption at specially favourable prices.

Minimum Persian Royalty Guaranteed1933
Government / Liberal Party Government ยท Chairman APOC ยท Persia

Accepts a guaranteed minimum annual payment of seven hundred fifty thousand pounds to the Persian government.

Oil Dispute Arbitration Procedure Agreed1933
Government / Liberal Party Government ยท Chairman APOC ยท Persia

Accepts a formal arbitration procedure for future disputes between the company and the Persian government.

Persian Income Tax Payment Arrangement1933
Government / Liberal Party Government ยท Chairman APOC ยท Persia

Agrees to make annual payments in lieu of Persian income tax under the new concession.

Persian Oil Production Exceeds Seven Million Tons1933
Government / Liberal Party Government ยท Chairman APOC ยท Persia

Company production reaches 7,087,000 tons and payments to Persia total about 1,785,000 pounds.

Persian Oil Training Grant Established1933
Government / Liberal Party Government ยท Chairman APOC ยท Great Britain

Agrees to provide an annual grant for professional education of Persian nationals in the petroleum industry.

New Persian Oil Concession Signed29 April 1933
Government / Liberal Party Government ยท Chairman APOC ยท Tehran

Signs a new concession replacing the 1901 D'Arcy agreement after negotiations with the Persian government.

1934

Haft Kel Output Exceeds Two Million Tons1934
Government / Liberal Party Government ยท Chairman APOC ยท Haft Kel

Haft Kel produces more than two million tons annually as Anglo-Persian expands after the new concession.

Kermanshah Petroleum Company RegisteredJune 1934
Government / Liberal Party Government ยท Chairman APOC ยท London

Registers the Kermanshah Petroleum Company as a subsidiary for development of the Naft-e Shah region.

1935

Anglo-Persian Renamed Anglo-Iranian Oil Company1935
Government / Liberal Party Government ยท Chairman APOC ยท London

Renames the company Anglo-Iranian Oil Company after Persia formally adopts Iran as its international name.

Titles and roles

Chairman APOC ยท Company Director ยท Technical Adviser APOC ยท Vice-Chairman APOC

Record provenance

This biography is assembled from World History Database records filtered by country and personal-name fields. Exact duplicate display records are removed. The database is an index rather than a complete narrative biography; formal research should verify entries against relevant primary or specialist sources.