Companies covered: Schlumberger N.V. (NYSE:SLB), Halliburton Company (NYSE:HAL), Baker Hughes (NYSE:BKR), Liberty Oilfield Services (NYSE:LBRT), NexTier Oilfield Solutions (NYSE:NEX), Helmerich & Payne, Inc. (NYSE:HP), Patterson-UTI Energy, Inc. (NASDAQ:PTEN), Precision Drilling Corporation (NYSE:PDS), Transocean Ltd. (NYSE:RIG), Noble Corporation (NYSE:NE), Valaris PLC (OTCMKTS:VALPQ), TechnipFMC plc (NYSE:FTI), Oceaneering International, Inc. (NYSE:OII), Dril-Quip, Inc. (NYSE:DRQ), ChampionX Corp. (NASDAQ:CHX), Exxon Mobil Corporation (NYSE:XOM), Chevron Corporation (NYSE:CVX), Shell PLC (NYSE:SHEL), BP p.l.c. (NYSE:BP), ConocoPhillips (NYSE:COP), EOG Resources, Inc. (NYSE:EOG), Pioneer Natural Resources Company (NYSE:PXD), Valero Energy Corporation (NYSE:VLO), Marathon Petroleum Corporation (NYSE:MPC), Phillips 66 (NYSE:PSX), Canadian Natural Resources Limited (NYSE:CNQ), TotalEnergies SE (NYSE:TTE), Apache Corporation (NASDAQ:APA), Geopark Ltd (NYSE:GPRK), PetroTal Corp. (OTCMKTS:PTALF), Arrow Exploration Corp. (OTCMKTS:CSTPF), Calima Energy Ltd. (OTCMKTS:CLMEF), Panoro Energy ASA (OTCMKTS:PESAF), Pharos Energy PLC (OTCMKTS:SOCLF), Vaalco Energy Inc (NYSE:EGY), Tethys Oil AB (OTCMKTS:TTHYF), Valeura Energy Inc. (OTCMKTS:PNWRF), Chariot Ltd. (OTCMKTS:OIGLF), Longboat Energy PLC (LON:LBE), Hartshead Resources NL (OTCMKTS:PGNYF), Zephyr Energy PLC (OTCMKTS:ZPHRF), Southern Energy Corp. (OTCMKTS:SOUTF), ADX Energy Limited (OTCMKTS:ADXRF), Tullow Oil ADR (OTCMKTS:TUWOY), Diamondback Energy, Inc. (NASDAQ:FANG), Hess Corporation (NYSE:HES), Enterprise Products Partners L.P. (NYSE:EPD), Ring Energy, Inc. (NYSEAMERICAN:REI), Northern Oil and Gas, Inc. (NYSE:NOG), Matador Resources Company (NYSE:MTDR), Opal Fuels Inc. (NASDAQ:OPAL)