Based on the news about the stock in the past five trading days, please predict the rise or fall of the stock in the next trading day. If the stock is predicted to rise in the next trading day, please output [Rise], if the stock is predicted to fall in the next trading day, please output [Decrease].

Date:2019-05-13, Stock:PTR, The news for the past five days is as follows:
2019-05-06: NEWS1: Seadrill Partners LLC (SDLP) Ex-Dividend Date Scheduled for May 07, 2019.NEWS2: Seadrill Partners LLC (SDLP) Ex-Dividend Date Scheduled for May 07, 2019.NEWS3: China State Funds Sought to Cushion Blow as Stocks Tumble.
2019-05-07: NEWS1: Iraq planning $53B megaproject with ExxonMobil, PetroChina.NEWS2: API President & CEO: We Are Very Concerned About Tariffs.NEWS3: Iraq close to signing $53 billion deal with Exxon, PetroChina; denies Iran link.NEWS4: Iraq pursuing $53B megaproject with ExxonMobil, PetroChina.
2019-05-08: NEWS1: Iraq Close To Signing Mega $53 Billion Oil Deal.NEWS2: ExxonMobil & PetroChina Eye $53-Billion Megaproject in Iraq.NEWS3: ExxonMobil & PetroChina Eye $53-Billion Megaproject in Iraq.NEWS4: Oil Gains as Surprise Drop in U.S. Supplies Shows Tighter Market.NEWS5: ExxonMobil & PetroChina Eye $53-Billion Megaproject in Iraq.NEWS6: Concho Resources Inc. (CXO) Ex-Dividend Date Scheduled for May 09, 2019.NEWS7: Concho Resources Inc. (CXO) Ex-Dividend Date Scheduled for May 09, 2019.NEWS8: SandRidge Permian Trust (PER) Ex-Dividend Date Scheduled for May 09, 2019.NEWS9: SandRidge Permian Trust (PER) Ex-Dividend Date Scheduled for May 09, 2019.NEWS10: SandRidge Mississippian Trust I (SDT) Ex-Dividend Date Scheduled for May 09, 2019.NEWS11: SandRidge Mississippian Trust I (SDT) Ex-Dividend Date Scheduled for May 09, 2019.NEWS12: SandRidge Mississippian Trust II (SDR) Ex-Dividend Date Scheduled for May 09, 2019.NEWS13: SandRidge Mississippian Trust II (SDR) Ex-Dividend Date Scheduled for May 09, 2019.NEWS14: Iraq sees deal with Exxon Mobil, PetroChina 'very soon' - oil minister.NEWS15: Iraq sees deal with Exxon Mobil, PetroChina 'very soon' - oil minister.
2019-05-09: NEWS1: Helmerich & Payne, Inc. (HP) Ex-Dividend Date Scheduled for May 10, 2019.NEWS2: Helmerich & Payne, Inc. (HP) Ex-Dividend Date Scheduled for May 10, 2019.NEWS3: Viper Energy Partners LP (VNOM) Ex-Dividend Date Scheduled for May 10, 2019.NEWS4: Viper Energy Partners LP (VNOM) Ex-Dividend Date Scheduled for May 10, 2019.
2019-05-10: NEWS1: TOPLive Starts: Follow Developments in U.S.-China Tariffs Spat.

Answer: Decrease