Companies performing flow testing, well evaluation, and reservoir characterization. As of 2026, armbeat tracks 6 well testing companies operating in Oman. Rankings reflect a composite grade from three dimensions — Activity (operational footprint and volume), Performance (efficiency and KPIs), and Reliability (NPT events vs peer median) — recalculated as new daily drilling reports arrive. Top-ranked: 1. Baker Hughes (grade B+), 2. Halliburton (grade B+), 3. Weatherford International (grade D), 4. Al Mansoori, 5. NESR.