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Nabors Industries Ltd owns and operates land-based drilling rig fleets and is a provider of offshore platform rigs in the United States and international markets. It also provides performance tools, directional drilling services, tubular running services, and technologies. The company has four reportable segments: U.S. Drilling, International Drilling, Drilling Solutions, and Rig Technologies. The key revenue of the company is generated from International Drilling.
Castle Biosciences Inc is a molecular diagnostics company. The group provides test solutions for the diagnosis and treatment of dermatologic cancers, Barrett's esophagus (BE), and uveal melanoma. The product portfolio of the company includes DecisionDx-Melanoma, a risk stratification gene expression profile (GEP) test; DecisionDx-SCC, a risk stratification test for cutaneous squamous cell carcinoma; MyPath Melanoma, a diagnostic GEP test for use in patients with difficult-to-diagnose melanocytic lesions; and TissueCypher, a test to predict future development of progression of high-grade dysplasia and/or esophageal cancer. It also provides DecisionDx-UM, a risk stratification GEP test. The company also offers its products to the skin cancer and gastroenterology markets.