L David Stover

Insider Trading: Purchases

Symbol	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
NBL	$4.16	36,000	$149,853.60	711,153	2020-03-20	Filing
NBL	$20.92	12,000	$251,084.40	680,453	2019-12-04	Filing
NBL	$26.31	19,000	$499,834.90	727,254	2017-12-18	Filing