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ARCH: Archer awarded long-term drilling contract with Vista in Vaca Muerta

ARCHRegulatory press release05.11.2026 klo 16.56
Neuquen, Argentina (November 5, 2026)

Archer has further strengthened its position in the Vaca Muerta shale play
through the award of a new 2-year drilling contract with Vista, with an
additional 1-year option. The contract expands Archer's customer base in
Argentina and further strengthens its position in one of the world's most
attractive unconventional resource basins. The total contract value is
estimated at USD 35-40 million over the full contract term, including the
optional extension year.

Under the agreement, Archer will deploy its AC drilling rig DLS-156 to support
Vista's development program in the region. The addition of Vista represents an
important milestone in Archer's growth strategy in Argentina. As development in
the basin continues to accelerate, Archer looks forward to establishing a strong
and long-term partnership with Vista and supporting the operator in delivering
its drilling objectives safely, efficiently and reliably.

Gerardo Molinaro, VP of Land Drilling at Archer, commented: "We are extremely
proud to be part of Vista's projects and to add them to our portfolio of
customers. The deployment of the DLS-156 shows the confidence leading operators
place in our people, our technology, and our execution capabilities. This
agreement not only strengthens our presence in Vaca Muerta but also reinforces
our commitment to supporting the long-term growth of Argentina's energy
industry. We look forward to building a strong and successful partnership with
Vista as we work together to unlock the full potential of this world-class
resource."

For additional information, please contact:

Espen Joranger, Chief Financial Officer - Mobile: +47 982 06 812, Email:
espen.joranger@archerwell.com

Joachim Houeland, Manager Treasury and Investor Relations - Mobile: +47 482 78
748, Email: joachim.houeland@archerwell.com
2 78\
748\, Email: joachim.houeland@archerwell.com\