Exhibit 99.1 Nine Energy Service Announces First Quarter 2024 Results • Revenue, net loss and adjusted EBITDAA of $142.1 million, $(8.1) million and $15.0 million, respectively, for the first quarter of 2024 • Despite flat US rig count, increased gross profit in Q1 versus Q4 • Surpassed 60,000 StingerTM Dissolvable Plug units sold HOUSTON – Nine Energy Service, Inc. (“Nine” or the “Company”) (NYSE: NINE) reported first quarter 2024 revenues of $142.1 million, net loss of $(8.1) million, or $(0.24) per dilut ...