SemGroup Corporation and Rose Rock Midstream Announce Planned Retirement of Vice President Peter L. Schwiering

Company Initiates Search for New Vice President

| Source: Cadiz, Inc.;iDreamSky Technology Limited ;Impact Telecom;CNS Response, Inc.;Akers Biosciences, Inc.;Inteliquent, Inc.;Meridian Audio;Triax,Unitron Group;Triax;Unitron Group;Global Invacom Group Limited;MARUSYS;Diamondback Energy, Inc.;Fifth Street Senior Floating Rate Corp.;Fujitsu America, Inc.;CB Financial Services, Inc.;Diamondback Energy, Inc.;First Citizens Bancorporation, Inc.;ZAIS Group, LLC;Udi's Gluten Free;LinnCo, LLC;Blue Bird Corporation;CB Financial Services, Inc.;Nielsen;Rose Rock Midstream;Western Refining, Inc.;CB Financial Services, Inc.;7digital;Horizon Technology Finance Corporation;Bernstein Litowitz Berger & Grossmann LLP ;Fifth Street Senior Floating Rate Corp.;LinnCo, LLC;LinnCo, LLC;Globe Specialty Metals Inc. ;The Channel Company;American Water Works Company, Inc.;Top Ships, Inc.;Energy Fuels, Inc.;ForceField Energy, Inc.;Profire Energy, Inc.;InterCloud Systems, Inc.;Lattice, Inc.;GlyEco, Inc.;Quadrant 4 System Corp.;Bitcoin Shop, Inc.;Iveda Solutions, Inc., Direct Insite Corp., Drone Aviation Holding Corp., Big North Graphite Corp., The Coin Tree;Starstream Entertainment, Inc., Giggles N' Hugs, Inc., StationDigital Corp., Exeo Entertainment, Inc., I-Tap, Inc.;Clal Biotechnology Industries Ltd.;Presbyterian Senior Living;Actinium Pharmaceuticals, Inc.;Pac-12 Networks;NETGEAR, Akers Biosciences, TOP Ships;Rose Rock Midstream, L.P.;LinnCo, LLC;SoftIron;Cosmodyne, LLC;Cosmodyne, LLC;aioTV;Fyffes;Targa Resources Corp.;Western Refining, Inc.;Targa Resources Corp. ;Diamondback Energy, Inc.;Azteca America;Fundacion Azteca America;RBC Wealth Management;RBC Wealth Management;Targa Resources Corp.;BBC Worldwide;Market America, Inc. & SHOP.COM;LinnCo, LLC;eBay;Baker Donelson;Riverside Bank;Viper Energy Partners LP;Takeda Pharmaceutical Company Limited;OxySure Systems, Inc.;Southwest Airlines;LinnCo, LLC;Berkshire Hills Bancorp, Inc.;The Care and Concern Free Health Clinic;LifeLock, Inc.;Diamondback Energy, Inc.;Panasonic Corporation;Actinium Pharmaceuticals;SemGroup Corporation;Rose Rock Midstream L.P.;Fifth Street Senior Floating Rate Corp.;Valley Community Bank ;Actinium Pharmaceuticals, Inc.;Aptys Solutions;Cancer Genetics, Inc. ;E4 Computer Engineering;NXP Semiconductors N.V.;Bristol-Myers Squibb Company, Pfizer Inc.;Profire Energy;BNC Bancorp;Bigstock;DCR Strategies Inc. | TruCash;Akers Biosciences Inc.;OxySure Systems, Inc.;NETGEAR;TESARO, Inc.;Lattice Incorporated;Perritt Capital Management;Merck;Holland;Bristol-Myers Squibb;GlyEco, Inc.;LinnCo, LLC;The Home Depot;Lionbridge Technologies, Inc.;NatureWorks;TriQuint Semiconductor, Inc. ;Perspecta Trust LLC ;Fluor Corporation ;Rose Rock Midstream, L.P.;j2 Global;INC Research, Inc. ;Targa Resources Corp.;Holland;Women's Health USA;BillerudKorsnas AB;Oregon Health & Science University;LinnCo, LLC ;Y-TEC;Beyond Semiconductor;Trulia, Inc.;Holland;Diamondback Energy, Inc.;Federal Home Loan Bank of Seattle ;Phoenix Bancorp, Inc.;State Investors Bancorp, Inc. ;LinnCo, LLC;Akers Biosciences, Inc.;Sensory, Inc.;Targa Resources Corp.;American Red Cross;ProSyst;Otsuka Pharmaceutical Development & Commercialization, Inc.;Fifth Street Senior Floating Rate Corp.;Leapfrog;Phoenix Bancorp, Inc.;Cash Connect;Loomis;OnCore Biopharma, Inc.;Invetech Pty Ltd;Giggles N' Hugs, Inc.;LINN Energy, LLC;Princess Grace Hospital;Jack I. Zwick, Esq.;eWorld Companies, Inc.;Diamondback Energy, Inc.;NeuroBioPharm Inc.;Targa Resources Corp.;All Medical Solutions;The Medical Alliance, Inc.;Holland;SQN Banking Systems;Energy Fuels, Inc., Trecora Resources, Zivo Bioscience, Inc., AV Therapeutics, Inc., Lattice, Inc.;Targa Resources Corp. ;Cell Therapy Catapult;Allpoint Network;Targa Resources Partners LP;Rose Rock Midstream, L.P. ;Targa Resources Partners LP;ForceField Energy Inc.;Rose Rock Midstream, L.P.;Bristol Myers-Squibb;LinnCo, LLC;MaxLinear, Inc.;LinnCo, LLC;Acasti Pharma Inc.;Discovery Center of Idaho ;Courier Corporation ;QEST;LinnCo, LLC;BMV Group;Diamondback Energy, Inc.;Facilis Technology;Expedia, Inc.;Targa Resources Corp.;Viper Energy Partners LP;BMC Software, Inc. ;Centrosolar America, Inc.;Hanse Orga;Diamondback Energy, Inc.;OncoSec Medical Inc.;Stemgent;RM Auctions;LinnCo, LLC;AV Therapeutics, Inc.;Kyocera Communications Inc.;Walgreens;Liberty Mutual Insurance;Rose Rock Midstream, L.P.;Qualys, Inc.;Rose Rock Midstream;SemGroup Corporation;Reddaway;Federal Home Loan Bank of Seattle;MaxLinear, Inc.;Targa Resources Partners LP;NantHealth;LinnCo, LLC;thePlatform;Alliance Bancorp, Inc. of Pennsylvania;American Airlines Center;Bell Helicopter;Northpointe Bank;YRC Freight;Trading Technologies;OptionsCity Software;Orc;Quadrant 4 Systems Corp;OxySure Systems Inc;Lattice Inc.;Asia Pacific Stock Exchange;Inovalon;Nintendo Co., Ltd.;GridPoint;Holland;Pacific Coast Producers;Acasti Pharma Inc.;Noble Markets;Courier Corporation;LinnCo, LLC, Quantum Energy Partners ;YRC Freight;Rose Rock Midstream;CUR Media, Legacy Education Alliance, Apollo Medical Holdings;Fujifilm Holdings Corporation;Intrexon Corporation;Bitcoin Shop Inc.;Towers Watson & Co;Servier;Sporting Kansas City;LinnCo, LLC ;OxySure Systems, Inc.;Comptel Oyj;LinnCo, LLC;Putnam County Savings Bank;Outbrain Inc.;Squalan Natural Health B.V.;Lattice Incorporated;Trinity Health;Buena Vida Media;1347 Property Insurance Holdings, Inc., Cancer Genetics, Inc., Galectin Therapeutics, Inc., OxySure Systems, Inc., TOP Ships, Inc.;Asure Software, Inc.;CUR Media, Inc.;Bitcoin Shop, Inc.;Giggles N� Hugs, Inc.;Vapir Enterprises, Inc. ;Lightbridge Corp.;Profire Energy, Inc.;Lattice, Inc.;StationDigital, Inc.;Texas Rare Earth Resources, Inc.;Cardio3 BioSciences;Akers Biosciences, Inc., Arch Therapeutics, Inc., Zivo Bioscience, Inc., AV Therapeutics, Inc., Legacy Education Alliance, Inc.;Medytox Solutions, Inc.;Medytox Solutions, Inc.;Rose Rock Midstream ;Cardio3 BioSciences;LRR Energy, L.P.;Palmetto Bancshares, Inc.;New Penn;CareWell Urgent Care;MedImmune;Early Warning;CUR Media, Inc.;Fortress Biotech, Inc.;Kajeet;LinnCo, LLC;Bleckmann;Nordson Corporation;The Burlington Capital Group;Materialise;LinnCo LLC;Targa Resources Corp.;Cardio3 BioSciences;Juno Therapeutics, Inc.;Margaritaville Enterprises ;Diamondback Energy, Inc.;Fliphound ;SEPHORA;Florida Turbine Technologies, Inc.;Amazing Charts;Cancer Genetics, Inc.;Toyota;ProSyst;GreenPocket;Sorrento Therapeutics, Inc.;SmallCapVoice.com, Inc.;ReviveHealth;ReviveHealth;MeadWestvaco Corporation;Cancer Genetics, Inc.;Legacy Education Alliance, Inc.;StationDigital Corporation;VaultLogix;bluebird bio, Inc. ;Sprott Physical Gold Trust;Sprott Physical Silver Trust;OxySure Systems, Inc.;Appliance Recycling Centers of America;Ecobank;Pacific Coast Producers ;The Hamburg Port Authority;Open Access Technology International;LinnCo, LLC ;AppYea, Inc.;Valeant Pharmaceuticals International, Inc.;Pazoo, Inc.;ZenBanx Holding Ltd.;Jonas Fitness;Cancer Genetics Inc., Giggles N' Hugs Inc.;Intrexon Corporation;Building Materials Holding Corporation ;SmallCapVoice.com;Tokio Marine Holdings, Inc.;Nuveen Investments;Rambam Health Care Campus;Sprott Physical Gold Trust;Sprott Physical Silver Trust;Jamba Juice;Harmonix Music Systems, Inc.;Merz North America, Inc.;HNA Group;Sprott Inc.;Mediacom Communications Corporation;Calpian, Inc.;Marriott International;Colliers International Group Inc ;Colliers International Group Inc.;Kofi Annan Foundation;bluebird bio, Inc.;KKM Financial;Martha Stewart Living Omnimedia, Inc.;Sprott Physical Gold Trust;Sprott Physical Silver Trust;Sprott Physical Gold Trust;Chris4Life Colon Cancer Foundation;Dinaco;ZestFinance;Sprott Physical Gold Trust;Sprott Physical Silver Trust;Rhonda's Kiss;Usina Sao Martinho;LinnCo, LLC;LinnCo, LLC;Freescale Semiconductor ;Rose Rock Midstream;LinnCo, LLC;LinnCo, LLC;LinnCo, LLC;Sprott Physical Gold Trust;Sprott Physical Silver Trust;Fifth Street Senior Floating Rate Corp.;Fifth Street Senior Floating Rate Corp.;Professional Diversity Network, Inc., Lightbridge Corp., Energy Fuels, Inc., Methes Energies International Ltd.;Calpian, Inc., Legacy Education Alliance, Inc., Bitcoin Shop, Inc., Lattice Incorporated;U-Vend,Inc.;Apollo Medical Holdings, Inc.;BioCorRx, Inc.;Intrexon Corporation;SSP;Royal Philips;New Generation Consumer Group, Inc.;Midrex Technologies, Inc.;RFMW Ltd.;Shenandoah Telecommunications Co;Medical Marijuana, Inc.;University of Colorado;LinnCo, LLC;Jiangsu Hengrui Medicine Co., Ltd.;Legacy Education Alliance, Inc.;Tekmira Pharmaceuticals Corporation;Diamondback Energy, Inc.;Sprott Physical Gold Trust;Sprott Physical Silver Trust;LinnCo, LLC ;Pascack Bancorp, Inc.;National Charity League, Inc., Glendale Chapter;Windstream ;Diamondback Energy, Inc.;Acasti Pharma Inc.;Rose Rock Midstream L.P.;SemGroup Corporation;Sprott Physical Gold Trust;Sprott Physical Silver Trust;New Penn;Reddaway;Holland;Merck;Genome Compiler Corp.;Shenandoah Telecommunications Co;Rethink Robotics;New Penn;Reddaway;Holland;Cancer Genetics, Inc.;Apollo Medical Holdings, Orbital Tracking;Zimbra;Visible Alpha;Immuron Limited;Lattice Incorporated ;Legacy Education Alliance, Inc.;LinnCo, LLC ;STEMCELL Technologies;State Investors Bancorp, Inc.;Sprott Physical Gold Trust;Sprott Physical Silver Trust;Blyth, Inc.;Shared-Use Mobility Center;LinnCo, LLC;LinnCo, LLC ;Sprott Physical Gold Trust;Sprott Physical Silver Trust;Reddaway, Holland;American Water Works;Apollo Medical Holdings;A.H. Belo;Global Brands Group Holding Limited;Sprott Physical Gold Trust;Sprott Physical Silver Trust ;Independence Holding Company;Imagine Communications Corp.;E4 Computer Engineering;Collagen Solutions plc;BNY Mellon;Dynetics Inc.;Sirona Dental Systems Inc.;Square 1 Financial, Inc.;Medical Marijuana, Inc.;BASF;Intrexon Corporation;Pineapple Express, Inc.;TeamConnor Childhood Cancer Foundation;Cabinet Grow, Inc.;CenterPoint Energy, Inc.;Transeastern Power Trust;Baxalta Incorporated;Targa Resources Corp.;LinnCo, LLC;AD;Domain Real Estate Partners, LLC ;Intrexon Corporation;Transeastern Power Trust;Rose Rock Midstream, L.P.;NewBridge Bancorp;AppYea Inc.;Distilled Spirits Council;Infor;Bristol-Myers Squibb;ARMO BioSciences, Inc.;Envestnet;Terra Tech Corp.;Targa Resources Corp.;SmartCard Marketing Systems;Linn Co, LLC;Green Plains Partners LP;Foundation for a Drug-Free World;Sprott Physical Gold Trust;Sprott Physical Gold Trust;Reis, Inc;TriVascular Technologies, Inc.;LinnCo;PositiveID Corporation;State Investors Bancorp, Inc.;Viper Energy Partners LP;Furmanite Corporation;Western Refining, Inc.;Murphy USA Inc.;Targa Resources Corp.;Diamondback Energy, Inc.;Windsor Castle Park Foundation;LinnCo;Pomerantz LLP;Baxalta Incorporated;Fifth Street Senior Floating Rate Corp. ;Momentous Entertainment Group;LinnCo, LLC;Targa Resources Partners LP;SemGroup Corporation;UIL Holdings Corporation;TriVascular Technologies, Inc.;AEON Clinical Laboratories;Sprott Physical Gold Trust, Sprott Physical Silver Trust;Capital Bank Financial Corp. ;Rocky Mountain Ayre, Inc.;SmartCard Marketing Systems Inc.;STG Group, Inc.;STG Group, Inc.;Sprott Physical Gold Trust, Sprott Physical Silver Trust;Trax;BioElectronics Corporation;Seen On Screen TV, Inc.;Targa Resources Corp.;Sprott Physical Gold Trust,Sprott Physical Silver Trust;Rose Rock Midstream, L.P.;Sprott Physical Gold Trust, Sprott Physical Silver Trust;Wilshire Bancorp, Inc.;Wilshire Bancorp, Inc.;Broadcom Corporation;The Johnson Studio;Sprott Physical Gold Trust, Sprott Physical Silver Trust;BASF;Sprott Physical Gold Trust, Sprott Physical Silver Trust;Daiichi Sankyo, Inc.;American Securities, P2 Capital Partners;Borsa Istanbul;Towers Watson;Zenbanx;Zenbanx;Hopewell Valley Community Bank;Pierre Fabre Laboratories;Sprott Physical Gold Trust;Sprott Physical Silver Trust;Sprott Physical Gold Trust;TowneBank;Hopkins Bancorp, Inc.;Baxalta Incorporated;Western Refining, Inc.;Terra Tech Corp.;Turkcell;Intrexon Corporation;Independence Holding Company;Cape Bancorp, Inc.;Tel Aviv Stock Exchange;The General;The Conservation Fund;CenterPoint Energy, Inc.;Auscrete Corporation;Rose Rock Midstream, L.P.;Baxalta Incorporated;Anchor BanCorp Wisconsin Inc.;Envoy Group Corp.; Sprott Physical Gold Trust;LATAM Airlines Group;LocalVox;Sprott Physical Gold Trust;LinnCo, LLC;PositiveID Corporation;Strategic Rare Earth Metals;Green Plains Partners LP;Rose Rock Midstream, LP;Broadcom Corporation;Healios;Harland Clarke;DCP Midstream, LLC;Dyn, Inc.;FieldAware;Powerhouse Science Center;DCP Midstream;Targa Resources Partners LP;Belterra Casino Resort;LinnCo, LLC;TRIANNI, Inc.;Colgate-Palmolive Company;Blueprint;Bit Stew Systems;ALK Technologies;Rose Rock Midstream, L.P.;Targa Resources Corp.;Shenandoah Telecommunications Co;Viper Energy Partners LP;SoftBank Group Corp.;Diamondback Energy, Inc.;Aerohive Networks;Diana Fruit Co., Inc.;Healios K.K.;Harmony Bank;GasLog Partners;Kontron;Kontron;Green Plains Partners LP;Southwest Airlines Co.;Rose Rock Midstream;LinnCo, LLC;Datawatch Corporation;JAVELIN Mortgage Investment Corp.;BAI;Pomerantz LLP;Green Plains Partners LP;LinnCo, LLC;Global Boatworks Holdings, Inc.;The Center for an Agricultural Economy;SharkReach, Inc.;NightFood Holdings, Inc.;Mango Capital, Inc.;Daiichi Sankyo Oncology;Constellation;Bridge Bank;LinnCo, LLC;Rocky Mountain High Brands, Inc.;Wohl and Fruchter LLP; YRC Worldwide;Striped Pig Distillery;Pulaski Financial Corp.;American Independence Corp.;CorreLog;MonoSol Rx;USI;CenterPoint Energy, Inc.;LinnCo;Wilshire Bancorp, Inc.;Advanced Medical Isotope Corporation ;PureSnax International, Inc. ;Consensus;Rose Rock Midstream;Navios Maritime Acquisition Corporation;Polycom;LinnCo, LLC;Efma;LinnCo, LLC;Intrexon Corporation;iStream Financial Services;Roc Nation;SnipGold Corp.;Microchip Technology;PetroShare Corp.;AbbVie;Green Plain Partners LP;Rocky Mountain High Brands, Inc.;LinnCo, LLC;Black Knight Financial Services, Inc.;Advanced Analytical Technologies, Inc.;LinnCo, LLC ;Behavioral Health Center of Excellence ;Cape Bancorp, Inc.;Advanced Medical Isotope Corporation;Auscrete Corporation;Viper Energy Partners LP;Diamondback Energy, Inc.;Garmin Ltd.;Gritstone Oncology;Vifor Pharma;FlexFridge Inc.;Royal Philips;LinnCo.;ascribe;Wilshire Bancorp, Inc.;LinnCo, LLC;Hudson & Marshall;Excalibur Resources Ltd.;Wilshire Bancorp, Inc.;Medical Marijuana, Inc. ;Townsquare Media;Prime Care Technologies;Pfizer Inc. ;Interstate Batteries;Harmony Bank;Advanced Distribution Solutions, Inc.;LinnCo, LLC;LINN Energy, LLC;Avoka;Rose Rock Midstream, L.P.;Rose Rock Midstream;SnipGold Corp.;Rocky Mountain High Brands;Westwood Holdings Group, Inc. Cadiz, Inc.;iDreamSky Technology Limited ;Impact Telecom;CNS Response, Inc.;Akers Biosciences, Inc.;Inteliquent, Inc.;Meridian Audio;Triax,Unitron Group;Triax;Unitron Group;Global Invacom Group Limited;MARUSYS;Diamondback Energy, Inc.;Fifth Street Senior Floating Rate Corp.;Fujitsu America, Inc.;CB Financial Services, Inc.;Diamondback Energy, Inc.;First Citizens Bancorporation, Inc.;ZAIS Group, LLC;Udi's Gluten Free;LinnCo, LLC;Blue Bird Corporation;CB Financial Services, Inc.;Nielsen;Rose Rock Midstream;Western Refining, Inc.;CB Financial Services, Inc.;7digital;Horizon Technology Finance Corporation;Bernstein Litowitz Berger & Grossmann LLP ;Fifth Street Senior Floating Rate Corp.;LinnCo, LLC;LinnCo, LLC;Globe Specialty Metals Inc. ;The Channel Company;American Water Works Company, Inc.;Top Ships, Inc.;Energy Fuels, Inc.;ForceField Energy, Inc.;Profire Energy, Inc.;InterCloud Systems, Inc.;Lattice, Inc.;GlyEco, Inc.;Quadrant 4 System Corp.;Bitcoin Shop, Inc.;Iveda Solutions, Inc., Direct Insite Corp., Drone Aviation Holding Corp., Big North Graphite Corp., The Coin Tree;Starstream Entertainment, Inc., Giggles N' Hugs, Inc., StationDigital Corp., Exeo Entertainment, Inc., I-Tap, Inc.;Clal Biotechnology Industries Ltd.;Presbyterian Senior Living;Actinium Pharmaceuticals, Inc.;Pac-12 Networks;NETGEAR, Akers Biosciences, TOP Ships;Rose Rock Midstream, L.P.;LinnCo, LLC;SoftIron;Cosmodyne, LLC;Cosmodyne, LLC;aioTV;Fyffes;Targa Resources Corp.;Western Refining, Inc.;Targa Resources Corp. ;Diamondback Energy, Inc.;Azteca America;Fundacion Azteca America;RBC Wealth Management;RBC Wealth Management;Targa Resources Corp.;BBC Worldwide;Market America, Inc. & SHOP.COM;LinnCo, LLC;eBay;Baker Donelson;Riverside Bank;Viper Energy Partners LP;Takeda Pharmaceutical Company Limited;OxySure Systems, Inc.;Southwest Airlines;LinnCo, LLC;Berkshire Hills Bancorp, Inc.;The Care and Concern Free Health Clinic;LifeLock, Inc.;Diamondback Energy, Inc.;Panasonic Corporation;Actinium Pharmaceuticals;SemGroup Corporation;Rose Rock Midstream L.P.;Fifth Street Senior Floating Rate Corp.;Valley Community Bank ;Actinium Pharmaceuticals, Inc.;Aptys Solutions;Cancer Genetics, Inc. ;E4 Computer Engineering;NXP Semiconductors N.V.;Bristol-Myers Squibb Company, Pfizer Inc.;Profire Energy;BNC Bancorp;Bigstock;DCR Strategies Inc. | TruCash;Akers Biosciences Inc.;OxySure Systems, Inc.;NETGEAR;TESARO, Inc.;Lattice Incorporated;Perritt Capital Management;Merck;Holland;Bristol-Myers Squibb;GlyEco, Inc.;LinnCo, LLC;The Home Depot;Lionbridge Technologies, Inc.;NatureWorks;TriQuint Semiconductor, Inc. ;Perspecta Trust LLC ;Fluor Corporation ;Rose Rock Midstream, L.P.;j2 Global;INC Research, Inc. ;Targa Resources Corp.;Holland;Women's Health USA;BillerudKorsnas AB;Oregon Health & Science University;LinnCo, LLC ;Y-TEC;Beyond Semiconductor;Trulia, Inc.;Holland;Diamondback Energy, Inc.;Federal Home Loan Bank of Seattle ;Phoenix Bancorp, Inc.;State Investors Bancorp, Inc. ;LinnCo, LLC;Akers Biosciences, Inc.;Sensory, Inc.;Targa Resources Corp.;American Red Cross;ProSyst;Otsuka Pharmaceutical Development & Commercialization, Inc.;Fifth Street Senior Floating Rate Corp.;Leapfrog;Phoenix Bancorp, Inc.;Cash Connect;Loomis;OnCore Biopharma, Inc.;Invetech Pty Ltd;Giggles N' Hugs, Inc.;LINN Energy, LLC;Princess Grace Hospital;Jack I. Zwick, Esq.;eWorld Companies, Inc.;Diamondback Energy, Inc.;NeuroBioPharm Inc.;Targa Resources Corp.;All Medical Solutions;The Medical Alliance, Inc.;Holland;SQN Banking Systems;Energy Fuels, Inc., Trecora Resources, Zivo Bioscience, Inc., AV Therapeutics, Inc., Lattice, Inc.;Targa Resources Corp. ;Cell Therapy Catapult;Allpoint Network;Targa Resources Partners LP;Rose Rock Midstream, L.P. ;Targa Resources Partners LP;ForceField Energy Inc.;Rose Rock Midstream, L.P.;Bristol Myers-Squibb;LinnCo, LLC;MaxLinear, Inc.;LinnCo, LLC;Acasti Pharma Inc.;Discovery Center of Idaho ;Courier Corporation ;QEST;LinnCo, LLC;BMV Group;Diamondback Energy, Inc.;Facilis Technology;Expedia, Inc.;Targa Resources Corp.;Viper Energy Partners LP;BMC Software, Inc. ;Centrosolar America, Inc.;Hanse Orga;Diamondback Energy, Inc.;OncoSec Medical Inc.;Stemgent;RM Auctions;LinnCo, LLC;AV Therapeutics, Inc.;Kyocera Communications Inc.;Walgreens;Liberty Mutual Insurance;Rose Rock Midstream, L.P.;Qualys, Inc.;Rose Rock Midstream;SemGroup Corporation;Reddaway;Federal Home Loan Bank of Seattle;MaxLinear, Inc.;Targa Resources Partners LP;NantHealth;LinnCo, LLC;thePlatform;Alliance Bancorp, Inc. of Pennsylvania;American Airlines Center;Bell Helicopter;Northpointe Bank;YRC Freight;Trading Technologies;OptionsCity Software;Orc;Quadrant 4 Systems Corp;OxySure Systems Inc;Lattice Inc.;Asia Pacific Stock Exchange;Inovalon;Nintendo Co., Ltd.;GridPoint;Holland;Pacific Coast Producers;Acasti Pharma Inc.;Noble Markets;Courier Corporation;LinnCo, LLC, Quantum Energy Partners ;YRC Freight;Rose Rock Midstream;CUR Media, Legacy Education Alliance, Apollo Medical Holdings;Fujifilm Holdings Corporation;Intrexon Corporation;Bitcoin Shop Inc.;Towers Watson & Co;Servier;Sporting Kansas City;LinnCo, LLC ;OxySure Systems, Inc.;Comptel Oyj;LinnCo, LLC;Putnam County Savings Bank;Outbrain Inc.;Squalan Natural Health B.V.;Lattice Incorporated;Trinity Health;Buena Vida Media;1347 Property Insurance Holdings, Inc., Cancer Genetics, Inc., Galectin Therapeutics, Inc., OxySure Systems, Inc., TOP Ships, Inc.;Asure Software, Inc.;CUR Media, Inc.;Bitcoin Shop, Inc.;Giggles N� Hugs, Inc.;Vapir Enterprises, Inc. ;Lightbridge Corp.;Profire Energy, Inc.;Lattice, Inc.;StationDigital, Inc.;Texas Rare Earth Resources, Inc.;Cardio3 BioSciences;Akers Biosciences, Inc., Arch Therapeutics, Inc., Zivo Bioscience, Inc., AV Therapeutics, Inc., Legacy Education Alliance, Inc.;Medytox Solutions, Inc.;Medytox Solutions, Inc.;Rose Rock Midstream ;Cardio3 BioSciences;LRR Energy, L.P.;Palmetto Bancshares, Inc.;New Penn;CareWell Urgent Care;MedImmune;Early Warning;CUR Media, Inc.;Fortress Biotech, Inc.;Kajeet;LinnCo, LLC;Bleckmann;Nordson Corporation;The Burlington Capital Group;Materialise;LinnCo LLC;Targa Resources Corp.;Cardio3 BioSciences;Juno Therapeutics, Inc.;Margaritaville Enterprises ;Diamondback Energy, Inc.;Fliphound ;SEPHORA;Florida Turbine Technologies, Inc.;Amazing Charts;Cancer Genetics, Inc.;Toyota;ProSyst;GreenPocket;Sorrento Therapeutics, Inc.;SmallCapVoice.com, Inc.;ReviveHealth;ReviveHealth;MeadWestvaco Corporation;Cancer Genetics, Inc.;Legacy Education Alliance, Inc.;StationDigital Corporation;VaultLogix;bluebird bio, Inc. ;Sprott Physical Gold Trust;Sprott Physical Silver Trust;OxySure Systems, Inc.;Appliance Recycling Centers of America;Ecobank;Pacific Coast Producers ;The Hamburg Port Authority;Open Access Technology International;LinnCo, LLC ;AppYea, Inc.;Valeant Pharmaceuticals International, Inc.;Pazoo, Inc.;ZenBanx Holding Ltd.;Jonas Fitness;Cancer Genetics Inc., Giggles N' Hugs Inc.;Intrexon Corporation;Building Materials Holding Corporation ;SmallCapVoice.com;Tokio Marine Holdings, Inc.;Nuveen Investments;Rambam Health Care Campus;Sprott Physical Gold Trust;Sprott Physical Silver Trust;Jamba Juice;Harmonix Music Systems, Inc.;Merz North America, Inc.;HNA Group;Sprott Inc.;Mediacom Communications Corporation;Calpian, Inc.;Marriott International;Colliers International Group Inc ;Colliers International Group Inc.;Kofi Annan Foundation;bluebird bio, Inc.;KKM Financial;Martha Stewart Living Omnimedia, Inc.;Sprott Physical Gold Trust;Sprott Physical Silver Trust;Sprott Physical Gold Trust;Chris4Life Colon Cancer Foundation;Dinaco;ZestFinance;Sprott Physical Gold Trust;Sprott Physical Silver Trust;Rhonda's Kiss;Usina Sao Martinho;LinnCo, LLC;LinnCo, LLC;Freescale Semiconductor ;Rose Rock Midstream;LinnCo, LLC;LinnCo, LLC;LinnCo, LLC;Sprott Physical Gold Trust;Sprott Physical Silver Trust;Fifth Street Senior Floating Rate Corp.;Fifth Street Senior Floating Rate Corp.;Professional Diversity Network, Inc., Lightbridge Corp., Energy Fuels, Inc., Methes Energies International Ltd.;Calpian, Inc., Legacy Education Alliance, Inc., Bitcoin Shop, Inc., Lattice Incorporated;U-Vend,Inc.;Apollo Medical Holdings, Inc.;BioCorRx, Inc.;Intrexon Corporation;SSP;Royal Philips;New Generation Consumer Group, Inc.;Midrex Technologies, Inc.;RFMW Ltd.;Shenandoah Telecommunications Co;Medical Marijuana, Inc.;University of Colorado;LinnCo, LLC;Jiangsu Hengrui Medicine Co., Ltd.;Legacy Education Alliance, Inc.;Tekmira Pharmaceuticals Corporation;Diamondback Energy, Inc.;Sprott Physical Gold Trust;Sprott Physical Silver Trust;LinnCo, LLC ;Pascack Bancorp, Inc.;National Charity League, Inc., Glendale Chapter;Windstream ;Diamondback Energy, Inc.;Acasti Pharma Inc.;Rose Rock Midstream L.P.;SemGroup Corporation;Sprott Physical Gold Trust;Sprott Physical Silver Trust;New Penn;Reddaway;Holland;Merck;Genome Compiler Corp.;Shenandoah Telecommunications Co;Rethink Robotics;New Penn;Reddaway;Holland;Cancer Genetics, Inc.;Apollo Medical Holdings, Orbital Tracking;Zimbra;Visible Alpha;Immuron Limited;Lattice Incorporated ;Legacy Education Alliance, Inc.;LinnCo, LLC ;STEMCELL Technologies;State Investors Bancorp, Inc.;Sprott Physical Gold Trust;Sprott Physical Silver Trust;Blyth, Inc.;Shared-Use Mobility Center;LinnCo, LLC;LinnCo, LLC ;Sprott Physical Gold Trust;Sprott Physical Silver Trust;Reddaway, Holland;American Water Works;Apollo Medical Holdings;A.H. Belo;Global Brands Group Holding Limited;Sprott Physical Gold Trust;Sprott Physical Silver Trust ;Independence Holding Company;Imagine Communications Corp.;E4 Computer Engineering;Collagen Solutions plc;BNY Mellon;Dynetics Inc.;Sirona Dental Systems Inc.;Square 1 Financial, Inc.;Medical Marijuana, Inc.;BASF;Intrexon Corporation;Pineapple Express, Inc.;TeamConnor Childhood Cancer Foundation;Cabinet Grow, Inc.;CenterPoint Energy, Inc.;Transeastern Power Trust;Baxalta Incorporated;Targa Resources Corp.;LinnCo, LLC;AD;Domain Real Estate Partners, LLC ;Intrexon Corporation;Transeastern Power Trust;Rose Rock Midstream, L.P.;NewBridge Bancorp;AppYea Inc.;Distilled Spirits Council;Infor;Bristol-Myers Squibb;ARMO BioSciences, Inc.;Envestnet;Terra Tech Corp.;Targa Resources Corp.;SmartCard Marketing Systems;Linn Co, LLC;Green Plains Partners LP;Foundation for a Drug-Free World;Sprott Physical Gold Trust;Sprott Physical Gold Trust;Reis, Inc;TriVascular Technologies, Inc.;LinnCo;PositiveID Corporation;State Investors Bancorp, Inc.;Viper Energy Partners LP;Furmanite Corporation;Western Refining, Inc.;Murphy USA Inc.;Targa Resources Corp.;Diamondback Energy, Inc.;Windsor Castle Park Foundation;LinnCo;Pomerantz LLP;Baxalta Incorporated;Fifth Street Senior Floating Rate Corp. ;Momentous Entertainment Group;LinnCo, LLC;Targa Resources Partners LP;SemGroup Corporation;UIL Holdings Corporation;TriVascular Technologies, Inc.;AEON Clinical Laboratories;Sprott Physical Gold Trust, Sprott Physical Silver Trust;Capital Bank Financial Corp. ;Rocky Mountain Ayre, Inc.;SmartCard Marketing Systems Inc.;STG Group, Inc.;STG Group, Inc.;Sprott Physical Gold Trust, Sprott Physical Silver Trust;Trax;BioElectronics Corporation;Seen On Screen TV, Inc.;Targa Resources Corp.;Sprott Physical Gold Trust,Sprott Physical Silver Trust;Rose Rock Midstream, L.P.;Sprott Physical Gold Trust, Sprott Physical Silver Trust;Wilshire Bancorp, Inc.;Wilshire Bancorp, Inc.;Broadcom Corporation;The Johnson Studio;Sprott Physical Gold Trust, Sprott Physical Silver Trust;BASF;Sprott Physical Gold Trust, Sprott Physical Silver Trust;Daiichi Sankyo, Inc.;American Securities, P2 Capital Partners;Borsa Istanbul;Towers Watson;Zenbanx;Zenbanx;Hopewell Valley Community Bank;Pierre Fabre Laboratories;Sprott Physical Gold Trust;Sprott Physical Silver Trust;Sprott Physical Gold Trust;TowneBank;Hopkins Bancorp, Inc.;Baxalta Incorporated;Western Refining, Inc.;Terra Tech Corp.;Turkcell;Intrexon Corporation;Independence Holding Company;Cape Bancorp, Inc.;Tel Aviv Stock Exchange;The General;The Conservation Fund;CenterPoint Energy, Inc.;Auscrete Corporation;Rose Rock Midstream, L.P.;Baxalta Incorporated;Anchor BanCorp Wisconsin Inc.;Envoy Group Corp.; Sprott Physical Gold Trust;LATAM Airlines Group;LocalVox;Sprott Physical Gold Trust;LinnCo, LLC;PositiveID Corporation;Strategic Rare Earth Metals;Green Plains Partners LP;Rose Rock Midstream, LP;Broadcom Corporation;Healios;Harland Clarke;DCP Midstream, LLC;Dyn, Inc.;FieldAware;Powerhouse Science Center;DCP Midstream;Targa Resources Partners LP;Belterra Casino Resort;LinnCo, LLC;TRIANNI, Inc.;Colgate-Palmolive Company;Blueprint;Bit Stew Systems;ALK Technologies;Rose Rock Midstream, L.P.;Targa Resources Corp.;Shenandoah Telecommunications Co;Viper Energy Partners LP;SoftBank Group Corp.;Diamondback Energy, Inc.;Aerohive Networks;Diana Fruit Co., Inc.;Healios K.K.;Harmony Bank;GasLog Partners;Kontron;Kontron;Green Plains Partners LP;Southwest Airlines Co.;Rose Rock Midstream;LinnCo, LLC;Datawatch Corporation;JAVELIN Mortgage Investment Corp.;BAI;Pomerantz LLP;Green Plains Partners LP;LinnCo, LLC;Global Boatworks Holdings, Inc.;The Center for an Agricultural Economy;SharkReach, Inc.;NightFood Holdings, Inc.;Mango Capital, Inc.;Daiichi Sankyo Oncology;Constellation;Bridge Bank;LinnCo, LLC;Rocky Mountain High Brands, Inc.;Wohl and Fruchter LLP; YRC Worldwide;Striped Pig Distillery;Pulaski Financial Corp.;American Independence Corp.;CorreLog;MonoSol Rx;USI;CenterPoint Energy, Inc.;LinnCo;Wilshire Bancorp, Inc.;Advanced Medical Isotope Corporation ;PureSnax International, Inc. ;Consensus;Rose Rock Midstream;Navios Maritime Acquisition Corporation;Polycom;LinnCo, LLC;Efma;LinnCo, LLC;Intrexon Corporation;iStream Financial Services;Roc Nation;SnipGold Corp.;Microchip Technology;PetroShare Corp.;AbbVie;Green Plain Partners LP;Rocky Mountain High Brands, Inc.;LinnCo, LLC;Black Knight Financial Services, Inc.;Advanced Analytical Technologies, Inc.;LinnCo, LLC ;Behavioral Health Center of Excellence ;Cape Bancorp, Inc.;Advanced Medical Isotope Corporation;Auscrete Corporation;Viper Energy Partners LP;Diamondback Energy, Inc.;Garmin Ltd.;Gritstone Oncology;Vifor Pharma;FlexFridge Inc.;Royal Philips;LinnCo.;ascribe;Wilshire Bancorp, Inc.;LinnCo, LLC;Hudson & Marshall;Excalibur Resources Ltd.;Wilshire Bancorp, Inc.;Medical Marijuana, Inc. ;Townsquare Media;Prime Care Technologies;Pfizer Inc. ;Interstate Batteries;Harmony Bank;Advanced Distribution Solutions, Inc.;LinnCo, LLC;LINN Energy, LLC;Avoka;Rose Rock Midstream, L.P.;Rose Rock Midstream;SnipGold Corp.;Rocky Mountain High Brands;Westwood Holdings Group, Inc.

TULSA, Okla., Feb. 10, 2016 (GLOBE NEWSWIRE) -- SemGroup® Corporation (NYSE:SEMG) and Rose Rock Midstream, L.P. (NYSE:RRMS) today announced that Peter L. Schwiering, 71, who has served as a SemGroup vice president since February 2012, and in a variety of other leadership roles with the Company’s crude oil division since November 2000, including most recently as Chief Operating Officer and a director of the general partner of Rose Rock, will retire once a successor is in place. He will continue to serve in his current capacities until a successor is in place to ensure an orderly transition. 

SemGroup will initiate a comprehensive search process to identify a successor. The company will consider both internal and external candidates, and Schwiering will work with the company to help identify his successor.

Carlin G. Conner, president and chief executive officer of SemGroup, said, “On behalf of SemGroup and Rose Rock, we wish Pete all the best in his retirement. With more than 40 years of industry experience, Pete has been a critical component in the growth of our company. Fortunately for us we expect to have access to Pete and his vast knowledge of crude oil markets post retirement by means of a consultancy agreement. Pete will also be instrumental in selecting his successor later in the year.”

About SemGroup Corporation
Based in Tulsa, Oklahoma, SemGroup® Corporation (NYSE:SEMG) is a publicly traded midstream service company providing the energy industry the means to move products from the wellhead to the wholesale marketplace. SemGroup provides diversified services for end users and consumers of crude oil, natural gas, natural gas liquids, refined products and asphalt. Services include purchasing, selling, processing, transporting, terminalling and storing energy.

About Rose Rock Midstream
Rose Rock Midstream, L.P. (NYSE:RRMS) is a growth-oriented Delaware limited partnership formed by SemGroup® Corporation (NYSE:SEMG) to own, operate, develop and acquire a diversified portfolio of midstream energy assets.  Rose Rock Midstream provides crude oil gathering, transportation, storage and marketing services.  Headquartered in Tulsa, OK, Rose Rock Midstream has operations in six states with the majority of its assets strategically located in or connected to the Cushing, Oklahoma crude oil marketing hub.


            











    

        

        
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