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Online education and training services in the field of oil, gas and engineering; education and training in the field of oil, gas and engineering; educational examination and assessment services for the oil, gas and engineering sectors; on-line publication of electronic books and journals in the field of oil, gas and engineering; providing on-line electronic publications in the field of oil, gas and engineering; organization of exhibitions for educational and training purposes in the field of oil, gas and engineering; practical training [demonstration] to the oil, gas and engineering sectors; arranging and conducting of lessons, workshops, lectures, symposiums and seminars for the oil, gas and engineering sectors; writing, recording and publication of educational, training and instructional texts, audios and videos in the field of oil, gas and engineering; providing online podcasts and webinars in the field of oil, gas and engineering; production and rental of educational and instructional materials in the field of oil, gas and engineering; online research library services for the oil, gas and engineering sectors; education and training services; educational examination and assessment services; on-line publication of electronic books and journals; providing on-line electronic publications; organization of exhibitions for educational and training purposes; practical training [demonstration]; arranging and conducting of lessons, workshops, lectures, symposiums and seminars; writing, recording and publication of educational, training and instructional texts, audios and videos; providing online podcasts and webinars; production and rental of educational and instructional materials; online research library services