Midtream
The award of Argentina LNG's 48-inch trunk pipeline marks Pumpco's entry into the Argentine market. The U.S. firm is part of the international consortium that won the civil works alongside Bonatti, of Italy, and the local Contreras Hermanos, and it brings the specific trade a large-diameter route demands: the construction of midstream gas and oil pipelines.
Pumpco is a subsidiary of MasTec, one of the largest infrastructure groups in the United States, listed on the New York Stock Exchange under the ticker MTZ and headquartered in Coral Gables, Florida.
The group is the country's second-largest Hispanic-owned company, with more than 20,000 employees and annual revenue above $12 billion spread across four main lines of business: communications, clean energy, power transmission, and oil and gas pipelines. It has continued to post double-digit year-on-year growth in 2026, reporting record first-quarter revenue of $3.8 billion.
From Miami to the Shale Boom: The Company Behind Pumpco
MasTec's story is that of a family business. It was founded by Jorge Mas Canosa, a Cuban-American entrepreneur who arrived in Miami after the Cuban Revolution and built the company out of telecommunications infrastructure in Florida.
After his death in 1997, the group passed to his sons: Jorge Mas, chairman of the board, and José Mas, chief executive since 2007, who drove its diversification into energy. The two are also co-owners of the Inter Miami football club alongside David Beckham, the detail that made the company known outside the sector.
Within that portfolio, Pumpco is the piece devoted to pipelines. Headquartered in Giddings, Texas, the company specializes in the construction, maintenance, and rehabilitation of gas and oil transmission lines. MasTec acquired it in June 2008, in a $44 million deal, when Pumpco billed about $70 million a year and had more than 25 years in the business. It grew with the U.S. shale boom: its projects include a 470-mile (about 760-kilometer) gas pipeline for DCP Midstream, a U.S. gas gathering and processing company, in Texas, built in 13 months across terrain that ran from mud to rock.
That profile, a builder used to mobilizing large equipment fleets over long routes and solving large-diameter jobs in unconventional basins, explains its fit on the Argentina LNG pipeline, sized to carry up to 100 million cubic meters per day (MMm³/d) of gas. Speed of execution and the ability to open simultaneous work fronts are the cards Pumpco brings to a 527-kilometer system crossing Neuquén and Río Negro.
Argentina had been a standing target for the group. Pumpco had already competed in the country on the northern gas pipeline reversal and the Vaca Muerta Oil Sur pipeline (VMOS), and later on the Southern Energy pipeline, where it had bid in a consortium with Bonatti and Contreras Hermanos.
The Argentina LNG trunk award gives Pumpco its first contract in the country and, with it, the entry point into Latin America that MasTec had long sought. The work is tied to the project's final investment decision, expected in the second half of 2026, after which Pumpco, Bonatti, and Contreras Hermanos will take on the engineering and execution of the largest-diameter pipeline ever built in Argentina.