Hydrogen sulfide, or H2S, leaks like the one depicted on the show “ Landman ” are extremely dangerous. Exposure to high levels of the gas can be fatal. The real story behind decades old oil & gas wells I found under Ladera Ranch CA in July 2026 is danger from H2S gas and Benzene leaking near Poets Park. Hydrogen Sulfide Gas H2S Leaking From an Abandoned Oil Well Can Drop You Dead In Your Tracks Without Any Warning. Ladera Ranch CA has two abandoned oil wells deep drilled underground that could be leaking carcinogenic benzene and deadly hydrogen sulfide H2S gas , one oil well is 8,000 feet underground near a kid's playground at Poets Park, the other is at the end of Citrus Lane and it was deep drilled down over 4,000 feet, oil well depths. Old deep drilled Exxon Mobil oil well near/under what became Poets Park Ladera Ranch was short filled plugged at 351 feet during a re-abandonment in July 2001 due to blockage the drillers could not get past in the over 8,000 feet deep ...