Includes the following services rendered on a fee or contract basis: advisory and consulting services relating to mining, on-land site preparation, on-land rig installation, drilling, drilling bits services, casing and tubular services, mud engineering and supply, solids control, fishing and downhole special operations, wellsite geology and drilling control, core taking, well testing, wireline services, supply and operation of completion fluids (brines) supply and installation of completion devices, cementing (pressure pumping), stimulation services (fracturing, acidising and pressure pumping), workover and well repair services and plugg ...[+++]ing and abandoning of wells.

US investigations concluded that the "disaster was almost the inevitable result of years of industry and government complacency and lack of attention to safetyAs drilling pushes into ever-deeper and riskier waters where more of America’s oil lies, only systemic reforms of both government and industry will prevent a similar, future disaster” (William K. Reilly, Co-Chair of the Oil Spill Commission, Landmark Report).

Please note that contractual advances paid by some labels from certain music platforms are excluded from the calculation, as are revenues from the sale and mining of user data, some ad revenues and gains generated by the issuance of public shares by certain players.