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:2019-02-08, Stock:PTR, The news for the past five days is as follows:
2019-02-01: NEWS1: Drill, China, drill: State majors step on the gas after Xi calls for energy security.NEWS2: Factbox: China's oil majors tap new discoveries as they step up drilling.
2019-02-04: NEWS1: Chevron Stock Rose 3% Due to Q4 Earnings Beat.
2019-02-05: NEWS1: China Faces An Uphill Battle For Energy Independence.NEWS2: Seadrill Partners LLC (SDLP) Ex-Dividend Date Scheduled for February 06, 2019.NEWS3: Seadrill Partners LLC (SDLP) Ex-Dividend Date Scheduled for February 06, 2019.NEWS4: Analyzing Chevron’s Stock Price Forecast after Its Q4 Earnings.
2019-02-06: NEWS1: SandRidge Permian Trust (PER) Ex-Dividend Date Scheduled for February 07, 2019.NEWS2: SandRidge Permian Trust (PER) Ex-Dividend Date Scheduled for February 07, 2019.NEWS3: Helmerich & Payne, Inc. (HP) Ex-Dividend Date Scheduled for February 07, 2019.NEWS4: Helmerich & Payne, Inc. (HP) Ex-Dividend Date Scheduled for February 07, 2019.NEWS5: SandRidge Mississippian Trust II (SDR) Ex-Dividend Date Scheduled for February 07, 2019.NEWS6: SandRidge Mississippian Trust II (SDR) Ex-Dividend Date Scheduled for February 07, 2019.NEWS7: SandRidge Mississippian Trust I (SDT) Ex-Dividend Date Scheduled for February 07, 2019.NEWS8: SandRidge Mississippian Trust I (SDT) Ex-Dividend Date Scheduled for February 07, 2019.
2019-02-07: NEWS1: Noble Energy Inc. (NBL) Ex-Dividend Date Scheduled for February 08, 2019.NEWS2: Noble Energy Inc. (NBL) Ex-Dividend Date Scheduled for February 08, 2019.NEWS3: Pacific Coast Oil Trust (ROYT) Ex-Dividend Date Scheduled for February 08, 2019.NEWS4: Pacific Coast Oil Trust (ROYT) Ex-Dividend Date Scheduled for February 08, 2019.

Answer: Decrease