Tickers: OXY, APC
Sector: Energy
Deal value: $54.4 billion
Source: Mergermarket
Sector: Industrials and chemicals
Deal value: $70.4 billion
Tickers: AGN, ABBV
Sector: Pharmaceuticals
Deal value: $86.3 billion
Tickers: UTX, RTN
Sector: Defense
Deal value: $88.9 billion
Tickers: BMY, CELG
Deal value: $89.5 billion