(Adds: Summit Materials ( SUM ), Mubadala Capital, Old National

Bancorp ( ONB ), EQT, Sidenor Updates:)

Nov 25 (Reuters) - The following bids, mergers,

acquisitions and disposals were reported by 1430 GMT on Monday:

** Summit Materials ( SUM ) said rival Quikrete would

acquire the company in a cash deal valued at $11.5 billion, in a

move to capitalize on higher demand for building materials.

** Abu Dhabi's Mubadala Capital will take CI Financial ( CIXXF )

private in a C$12.1 billion ($8.66 billion) all-cash

deal, including debt, the Canadian asset and wealth manager

said.

** Regional lender Old National Bancorp ( ONB ) will buy

privately held Bremer Financial in a $1.40 billion

cash-and-stock deal, the companies said, creating a combined

bank with over $70 billion in assets.

** Natural gas producer EQT said alternative

asset manager Blackstone would buy minority stakes in

some of its pipelines for $3.5 billion in cash through a joint

venture.

** Basque steelmaker Sidenor has made an offer to buy a

29.9% stake in Spanish train maker Talgo held by

global investment fund Trilantic, a source close to the

negotiations said, confirming an earlier report by Expansion

newspaper.

** Italy's UniCredit launched a surprise 10

billion euro ($11 billion) bid for domestic peer Banco BPM

, which CEO Andrea Orcel said would not get in the way

of a potential deal for Germany's Commerzbank.

** Pipeline operator ONEOK ( OKE ) said on Sunday it would

buy the remaining shares of peer EnLink Midstream ( ENLC ) for

$4.3 billion in an all-stock deal, boosting its presence in the

Permian Basin amid increased consolidation in the U.S. energy

sector.

** QatarEnergy has entered into an agreement with

TotalEnergies to acquire additional offshore exploration

interests in the Orange Basin off the coast of Namibia, it said

on Sunday.

(Compiled by Rajarshi Roy and Kamal Choudhury in Bengaluru)