The following are selected milestones which we have achieved:

1915
Began pipeline work in the United States.

1939
Began international pipeline work in Venezuela.

1942-44
Served as principal contractor on the "Big Inch" and "Little Big Inch" War Emergency Pipelines in the United States which delivered Gulf Coast crude oil to the Eastern Seaboard.

1947-48
Built the 370-mile (600-kilometer) Camiri to Sucre and Cochabamba crude oil pipeline in Bolivia.

1951
Completed the 400-mile (645-kilometer) western segment of the Trans-Arabian Pipeline System in Jordan, Syria and Lebanon.

1954-55
Built Alaska’s first major pipeline system, consisting of 625 miles (1,000 kilometers) of petroleum products pipeline, housing, communications, two tank farms, five pump stations, and marine dock and loading facilities.

1956-57
Led a joint venture which constructed the 335-mile (535-kilometer) southern section of the Trans-Iranian Pipeline, a products pipeline system extending from Abadan to Tehran.

1958
Constructed pipelines and related facilities for the world’s largest oil export terminal at Kharg Island, Iran.

1960
Built the first major liquefied petroleum gas pipeline system, the 2,175-mile (3,480-kilometer) Mid-America Pipeline in the United States, including six delivery terminals, two operating terminals, 13 pump stations, communications and cavern storage.

1962
Began operations in Nigeria with the commencement of construction of the TransNiger Pipeline, a 170-mile (275-kilometer) crude oil pipeline.

1964-65
Built the 390-mile (625-kilometer) Santa Cruz to Sica Sica crude oil pipeline in Bolivia. The highest altitude reached by this line is 14,760 feet (4,500 meters) above sea level, which management believes is higher than the altitude of any other pipeline in the world.

1965
Began operations in Oman with the commencement of construction of the 175-mile (280-kilometer) Fahud to Muscat crude oil pipeline system.

1967-68
Built the 190-mile (310-kilometer) Orito to Tumaco crude oil pipeline in Colombia, one of five Willbros crossings of the Andes Mountains, a project notable for the use of helicopters in high-altitude construction.

1969
Completed a gas gathering system and 105 miles (170 kilometers) of 42-inch trunkline for the Iranian Gas Trunkline Project (IGAT) in Iran to supply gas to the USSR.

1970-72
Built the Trans-Ecuadorian Pipeline, crossing the Andes Mountains, consisting of 315 miles (505 kilometers) of 20- and 26-inch pipeline, seven pump stations, four pressure-reducing stations and six storage tanks. Considered the most logistically difficult pipeline project ever completed at the time.

1974-76
Led a joint venture which built the northernmost 225 miles (365 kilometers) of the Trans-Alaskan Pipeline System.

Led a joint venture which constructed 290 miles (465 kilometers) of pipeline and two pump stations in the difficult to access western Amazon basin of Peru. Another logistics challenge which required lightering from shipping on the Amazon River.

1974-79
Designed and engineered the 500-mile (795-kilometer) Sarakhs-Neka gas transmission line in northeastern Iran.

1982-83
Built the Cortez carbon dioxide pipeline system in the southwestern United States, consisting of 505 miles (815 kilometers) of 30-inch pipe.

1984-86
Constructed, through a joint venture, the All American Pipeline System, a 1,240-mile (1,995-kilometer), 30-inch heated pipeline, including 23 pump stations, in the United States.

1984-95
Developed and furnished a rapid deployment fuel pipeline distribution and storage system for the U.S. Army which was used extensively and successfully in Saudi Arabia during Operation Desert Shield/Desert Storm in 1990/1991 and in Somalia during 1993.

1985-86
Built a 185-mile (300-kilometer), 24-inch crude oil pipeline from Ayacucho to Covenas in Colombia, another Andean challenge.

1987
Rebuilt 25 miles (40 kilometers) of the Trans-Ecuadorian crude oil pipeline mobilizing to Ecuador in two weeks and completing work within six months after major portions were destroyed by an earthquake.

1988-92
Performed project management, engineering, procurement and field support services to expand the Great Lakes Gas Transmission System in the northern United States. The expansion involved modifications to 13 compressor stations and the addition of 660 miles (1,060 kilometers) of 36-inch pipeline in 50 separate loops.

1989-92
Provided pipeline engineering and field support services for the Kern River Gas Transmission System, a 36-inch pipeline project extending over 685 miles (1,100 kilometers) of desert and mountains from Wyoming to California in the United States.

1992-93
Rebuilt oil field gathering systems in Kuwait as part of the post-war reconstruction effort.

1996
Listed shares in an initial public offering of Common Stock on the NYSE under the symbol "WG."

1996-97
Achieved ISO Certification for seven operating companies.

1996-98
Performed an EPC contract with Asamera (Overseas) Limited to design and construct pipelines, flowlines and related facilities for the Corridor Block Gas Project located in southern Sumatra, Indonesia.

1997-98
Carried out a contract for the construction of 120 miles (200 kilometers) each of 36- and 20-inch pipelines in the Zuata Region of the Orinoco Belt in Venezuela.

Completed an EPC contract for El Paso Natural Gas Company and Gasoductos de Chihuahua, a joint venture between El Paso and PEMEX, to construct a 45-mile (75-kilometer) gas pipeline system in Texas and Mexico.

1999-00
Carried out a contract through a joint venture to construct a 492-mile (792-kilometer), 18-inch gas pipeline in Australia.

2000
Acquired Rogers & Phillips, Inc., a United States pipeline construction company.

Relocated the Willbros USA, Inc. administrative headquarters from Tulsa, Oklahoma to Houston, Texas.

Ended year with record backlog of $373.9 million.

2001
Acquired MSI Energy Services Inc., Alberta, Canada based contractor, working in the oilsands area and establishing a presence in Canada.

Ended year with new record backlog of $407.6 million.

2002
Completed Centennial Pipeline Project

Completed Explorer Pipeline Project

2003
Completed an EPC contract for the 665-mile (1,070-kilometer), 30-inch crude oil Chad–Cameroon Pipeline Project, through a joint venture with another international contractor.